Keitaro Horikawa, Hiroshi Okada and Motohiro Kanno : Effect
of A Small Amount of Lithium on Hot Ductility
of Al-Mg Base Alloys,Materials Science Forum, Vol.2, pp.1181-1186, 1996.
Kenichiro Ueda, Keitaro
Horikawa and Motohiro Kanno : Suppression of High
Temperature Embrittlement of Al-5%Mg Alloys
Containing A Trace of Sodium Caused by Antimony
Addition, Scripta Materialia, Vol.37, No.8, pp.1105-1110, 1997.
Keitaro Horikawa, Shigeru Kuramoto and Motohiro Kanno : High
Temperature Embrittlement Caused by Traces
of Calcium and Strontium in an Al-5%Mg Alloy,
Scripta Materialia, Vol.39, No.7, pp.861-866, 1998.
Keitaro Horikawa, Shigeru Kuramoto and Motohiro Kanno : Sources
of a trace amount of sodium, and its effect
on hot ductility of an Al-5mass%Mg alloy,
Light Metals Review, Vol.7, pp.18-23, 2000.
Shigeru Kuramoto, Keitaro
Horikawa and Motohiro Kanno : Effect of Trace Impurities
on Intergranular Fracture of Aluminum Alloys,
Materials Science Forum, pp.1531-1536, 2000.
Keitaro Horikawa, Shigeru Kuramoto, and Motohiro Kanno :
Intergranular Fracture Caused by Trace Impurities
in an Al-5.5mol%Mg Alloy, Acta Materialia, Vol.49, No.19, pp.3981-3989, 2001
Kenichi Yoshida, Wang, Yuqin, Keitaro
Horikawa, Kiyoshi Sakamaki, Kenji Kajiyama: Monitoring
of Micro-Cracking duiring Heating of Hydrogen
Doped Germanium and Silicon Single Crystals
by Acoustic Emission Method, Journal of Acoustic Emission, Vol. 19, pp.22-34, 2001.
Keitaro Horikawa, Shigeru Kuramoto, and Motohiro Kanno: Reply
to Comments on Intergranular Fracture Caused
by Trace Impurities in an Al-5.5mol%Mg alloy, Scripta Materialia, Vol.47, No.2, pp.131-135, 2002.
Keitaro Horikawa, Kenichi Yoshida and Kiyoshi Sakamaki :
Acoustic emission behavior during tensile
deformation and fracture of Al-Mg-Si base
alloys, Materials Science Forum, pp.1405-1410, 2002.
Goroh Itoh, Takayoshi Suzuki and Keitaro
Horikawa : Effects of alloy composition and quenching
rate on the bendability in Al-Mg-Si alloys, Materials Science Forum, pp.1193-1198, 2002.
Keitaro Horikawa and Kenichi Yoshida:Visualization of Hydrogen
in Tensile-Deformed Al-5%Mg Alloy by means
of Hydrogen Microprint Technique with EBSP
Analysis, Materials Transactions, Vol.45, No.2, pp.315-318, 2004.
Kenichi Yoshida, Yoshiaki Akematsu, Kiyoshi
Sakamaki and Keitaro Horikawa :Effect of Pinhole Shape with Divergent
Exit on AE Characteristics during Gas Leak,
Journal of Acoustic Emission, Vol.21, pp.223-229, 2004.
Keitaro Horikawa, Kenichi Yoshida, Akihiro Ohmori and Kiyoshi
Sakamaki :Acoustic Emission Caused by Environmental
Embrittlement of an Al-Mg-Si Alloy, Journal of Acoustic Emission, Vol.21, pp.206-212, 2004.
Kinya Ogawa, Hidetoshi Kobayashi, Fumiko
Sugiyama and Keitaro Horikawa: Prediction of Mechanical Behaviour of Low
Carbon Steel at High Strain-Rate Using Thermal
Activation Theory and Static Data, JSME International Journal Series A, Vol.48, No.4, pp.228-233, 2005.
Guang-Hong Lu, Ying Zhang, Shenghua Deng,
Tianmin Wang, Masanori Kohyama,Ryoichi Yamamoto,
Feng Liu, Keitaro Horikawa and Motohiro Kanno:Origin of intergranular embrittlement of
Al alloys induced by Na and Ca segregation:
Grain boundary weakening, Physical Review B, Vol.73, 224115, 2006.
Keitaro Horikawa and Hidetoshi Kobayashi:Hydrogen Accumulation
during Fatigue Deformation of Al-Mg-Si Base
Alloys, Materials Science Forum, Vols. 519-521, pp.1053-1058, 2006.
Hidetoshi Kobayashi, Masashi Daimaruya, Hiroshi
Tsuda and Keitaro Horikawa: Effects of strain-rate and pre-fatigue
on tensile properties of laser welded joint
of high strength steel plates, Journal de Physics W, Vol.134, pp.1175-1181, 2006.
Hidetoshi Kobayashi, Keitaro Horikawa, Yusuke Yamada, Masashi Daimaruya and Hiroshi Tsuda: Effect of pre-fatigue on dynamic and static tensile properties of lazer welded butt joints between different high strength steel plates, International Journal of Modern Physics B, Vol.22, No.9/11, pp. 1123-1128, 2008.
Hiroyuki Yamada, Keitaro Horikawa and Hidetoshi Kobayashi :Impact tensile properties in Al-Mg-Si base alloys for automotive use, International Journal of Modern Physics B, Vol.22, No.9/11, pp. 1141-1146, 2008.
Hidetoshi Kobayashi and Keitaro Horikawa : Deployable Structure in Plants, Advances in Science and Technology, Vol.58, pp. 31-40, 2008.
Keitaro Horikawa, Keita Yamaue and Hidetoshi Kobayashi:Effect
of Continuous Hydrogen Charging on Tensile
and Fatigue Properties of Ni-Zr Amorphous
Alloy Membranes, Materials Transactions, Vol.49, No.10, pp.2238-2242, 2008.
Keitaro Horikawa, Yoshihiko Kawabata and Hidetoshi Kobayashi:Spontaneous
Bending of Ni-Ti Alloy Plates Caused by Preferential
Hydrogen Absorption, Materials Transactions, Vol.49, No.10, pp.2233-2237, 2008.
Hidetoshi Kobayashi, Keitaro Horikawa, Kinya Ogawa and Masahiro Hori : Impact Deformation of Thin-Walled Circular Tube Filled with Aluminum Foam in Lateral Compression, Journal of Solid Mechanics and Materials Engineering, Vol.3, No.1, pp.64-71, 2009.
Keitaro Horikawa, Hiroaki Okada, Hidetoshi Kobayashi and Wataru Urushihara:Visualization of Diffusive Hydrogen in Low Alloy Steel by means of Hydrogen Microprint Technique at Elevated Temperatures,
Materials Transactions, Vol.50, No.4, pp.759-764, 2009.
H.Toda, T. Hidaka, M. Kobayashi, K. Uesugi, A. Takeuchi and K. Horikawa:Growth behavior of hydrogen micropores in aluminum alloys during high-temperature exposure,Acta Materialia, Vol.57, pp.2277-2290, 2009.
Hiroyuki Yamada, Keitaro Horikawa and Hidetoshi Kobayashi : Effect of trace sodium on high temperature embrittlement in quasi-static and impact deformation of Al-5%Mg alloys , Materials Transactions, Vol.50, No.12, pp.2790-2794, 2009.
Keitaro Horikawa, Hidetoshi Kobayashi and Motohiro Kanno : Hydrogen Evolution Behaviour during Tensile Deformation in Austenitic Stainless Steels Exposed to High Compressed Hydrogen Atmospheres, Materials Science Forum, Vols. 654-656, pp.2519-2522, 2010.
M. Tane, T. Kawashima, H. Yamada, K. Horikawa, H. Kobayashi and H. Nakajima:Strain-rate dependence of Anisotropic Compression Behaviour in Porous Iron with Unidirectional Pores,Journal of Materials Research, Vol.25, No.6 pp.1179-1190, 2010.
M. Tane, T. Kawashima, K. Horikawa, H. Kobayashi and H. Nakajima: Dynamic Compression Behavior of Lotus-type Porous Iron, Materials Science Forum, Vol. 658, pp.193-196, 2010.
Keitaro Horikawa, Keita Yamaue and Hidetoshi Kobayashi:Response of Hydrogen-Induced Deformation in ZrNi Amorphous Membranes, Materials Transactions, Vol. 51, No. 12, pp.2181-2187, 2010.
Hidetoshi Kobayashi, Kinya Ogawa, Keitaro Horikawa and Keiko Watanabe: Fracture Behavior Accmpanying Electromagnetic Waves of Granite in Dynamic Three Point Bending Phenomenon,Journal of Solid Mechanics and Materials Engineering, Vo.5, No.11, pp.873-881, 2011.
Keitaro Horikawa, Nobuaki Ando, Wataru Urushihara and Hidetoshi Kobayashi:Visualization of hydrogen gas evolution during deformation and fracture in SCM440 steel with different tempering conditions,Materials Science & Engineering A, Vol.534, pp. 495-503, 2012.
Hidetoshi Kobayashi, Akihumi Yoshimoto, Kinya Ogawa, Keitaro Horikawa, and Keiko Watanabe: Effects of Strain Rate and Elevated Temperature on Compressive Flow Stress and Absorbed Energy of Polyimide Foam, The European Physical Journal, EPJ Web of Conferences 26, 01035 (2012) (DOI: 10.1051/epjconf/20122601035)
Keitaro Horikawa, Wataru Kono, Hiroyuki Yamada and Hidetoshi Kobayashi:Suppression of grain boundary embrittlement of Al-5% Mg alloy by immersion in liquid indium,Scripta Materialia, Vol. 67, pp. 712-715, 2012. (http://dx.doi.org/10.1016/j.scriptamat.2012.06.033)
Hiroyuki Yamada, Keitaro Horikawa, Hidetoshi Kobayashi and Nagahisa Ogasawara:Effect of Strain Rate on Compressive Behavior for P/M Al-Zn-Mg-Cu Alloy and its Prediction Using Thermal Activation Theory,Journal of the Japanese Society for Experimental Mechanics, Vol. 13, Special Issue, pp. s154-s159, 2012.
Hiroyuki Yamada, Nagahisa Ogasawara, Yoko Shimizu, Keitaro Horikawa, Hidetoshi Kobayashi, and Xi Chen:Effect of High Strain Rate on Indentation in Pure Aluminum,Transactions of the ASME Journal of Engineering Materials and Technology, Vol. 135, 021010, 2013.
Hiroyuki Toda, Takaaki Inamori, Keitaro Horikawa, Kentaro Uesugi, Akihisa Takeuchi, Yoshio Suzuki, and M. Kobayashi: Effect of Hydrogen Micro Pores on Mechanical Properties in A2024 Aluminium Alloys,Materials Transactions, Vol.54, No.12, pp.2195-2201, 2013.
H. Toda, H. Oogo, K. Horikawa, K. Uesugi,
A. Takeuchi, Y. Suzuki, M. Nakazawa, Y. Aoki and M. Kobayashi: The true origin of ductile fracture in aluminium alloy,Metallurgical and Materials Transactions A, Vol. 45, No. 2, pp 765-776, 2014.
Hiroyuki Toda, Hideki Tsuruta, Keitaro Horikawa, Kentaro Uesugi, Akihisa Takeuchi, Yoshio Suzuki, and Masakazu Kobayashi: Effects of Stress-Triaxiality on Damage Evolution from Pre-Exsting Hydrogen Pores in Aluminium Alloys,Materials Transactions, Vol.55, No.2, pp.383-386, 2014.
Keitaro Horikawa, Shunsuke Hokazono and Hidetoshi Kobayashi: Dyamic Observation of Hydrogen Gas Release during Crack Propagation in Al-Zn-Mg Alloy, Materials Science Forum, Vols. 783-786, pp.168-173, 2014.
Iya I Tashlykova-Bushkevich, Keitaro Horikawa and Goroh Itoh: Ther role of Cr in H desorption kinetics in rapidly solidified Al, Materials Science Forum, Vols. 783-786, pp.264-269, 2014.
Keitaro Horikawa, Yuki Kitani, Tomo Ogura, Makoto Takahashi, Akio Hirose and Hidetoshi Kobayashi: Point defect clusters induced by high-speed deformation and its effect on age hardening in 6061 aluminum alloys, Materials Science Forum, Vols. 794-796, pp.778-783, 2014.
Hiroyuki Yamada, Masaki Tsurudome, Nagahisa Ogasawara and Keitaro Horikawa: Tensile Properties of 7075 Aluminum Alloys Subjected to Pre-fatigue in Humid Environment, Materials Science Forum, Vols. 794-796, pp.538-543, 2014.
Akihumi Yosimoto, Hidetoshi Kobayashi, Keitaro Horikawa, Keiko Watanabe and Kinya Ogawa: Dynamic and Quasi-static Compressive Deformation Behaviour of Polyimide Foam at Various Elevated Temperature, Applied Mechanics and Materials, Vol. 566, pp.158-163, 2014.
Masaaki Tsurudome, Hiroyuki Yamada, Nagahisa Ogasawara, Keitaro Horikawa: Effect of Pre-fatigue Deformation under Humid Environment on Impact Tensile Properties in 7075 Aluminum Alloys, Applied Mechanics and Materials, Vol. 566, pp.128-133, 2014.
Yuki Kitani, Keitaro Horikawa, Kenichi Tanigaki, Hidetoshi Kobayashi, Tomo Ogura and Akio Hirose: Effect of Impact Compression on Age Hardening Behavior of Aluminum Alloys, Applied Mechanics and Materials, Vol. 566, pp.409-414, 2014.
Hidetoshi Kobayashi, Keitaro Horikawa, Kinya Ogawa, Keiko Watanabe: Impact Compressive and Bending Behaviour of Rocks Accompanied by Electromagnetic Phenomena, Philosophical Transactions of The Royay Society A, Vol.372, 20130292, 2014. (http://dx.doi.org/10.1098/rsta.2013.0292)
Tyler LeBrun, Kenichi Tanigaki, Keitaro Horikawa, and Hidetoshi Kobayashi: Strain rate sensitivity and material anisotropy of selective laser melted 17-4 PH stainless steel, Mechanical Engineering Journal, Vol.1, No.5, pp.1-13, 2014 (DOI: 10.1299/mej.2014smm0049).
Tyler LeBrun, Takayuki Nakamoto, Keitaro Horikawa, and Hidetoshi Kobayashi: Effect of Retained Austenite on Subsequent Thermal Processing and Resultant Mechanical Properties of Selective Laser Melted 17-4 PH Stainless Steel, Materials and Design, Vol.81, pp.44-53, 2015.
Keitaro Horikawa, Yuki Kitani, Tomo Ogura, Makoto Takahashi, Akio Hirose and Hidetoshi Kobayashi: Enhanced age hardening in an Al-Mg-Si alloy using high-speed compression, Materials Transactions, Vol.56, No.7, pp.1058-1062, 2015.
Hiroyuki Yamada, Masaaki Tsurudome, Nobuhiro Miura, Keitaro Horikawa, and Nagahisa Ogasawara : Ductility Loss of 7075 Aluminum Alloys Affected by Interaction of Hydrogen, Fatigue Deformation and Strain Rate, Materials Science and Engineering A, Vol.642, No.7, pp.194-203, 2015.
Tomo Ogura, Keitaro Horikawa, Yuki Kitani, Mami Mihara, SeongNyeong Kim, Equo Kobayashi, Tatsuo Sato and Hidetoshi Kobayashi: Effect of high-speed impact compression on natural aging and subsequent artificial aging of a 6061 aluminum alloy, Materials Transactions, Vol.57, No.8, pp.1282-1286, 2016.
Akifumi Yosimoto, Kenichi Tanigaki, Keitaro Horikawa, Hidetoshi Kobayashi: Effects of Strain-Rate and Temperature on Mechanical Behavior of Polyimide Foam in Compression, Mechanical Engineering Journal, Vol.3, No.5, pp. 1-11, 2016.
Akifumi Yosimoto, Hidetoshi Kobayashi, Keitaro Horikawa and Kenichi Tanigaki: Compressive Deformation of Expanded Polylactic Acid Resin subjected to Quasi-static and Dynamic Loadings at Wide Temperatures, Mechanical Engineering Journal, Vol.3, No.6, pp. 1-8, 2016.
Kenichi Tanigaki, Akihiro Nakahara, Keitaro Horikawa and Hidetoshi Kobayashi: Synthesis of Hexagonal Diamond under Shock Loading Using Single Stage Powder Gun, Key Engineering Materials, Vol.715, pp. 249-253, 2016.
Hidetoshi Kobayashi, Keitaro Horikawa, Kenichi Tanigaki and Kinya Ogawa: Impact Compressive Fracture of Synthetic Quartz Accompanied by Electro-Magnetic Phenomenon, Key Engineering Materials, Vol.715, pp.13-20, 2016.
Shinnosuke Takeda, Kinya Ogawa, Kenichi Tanigaki, Keitaro Horikawa and Hidetoshi Kobayashi: DEM/FEM Simulations of Dynamic Response of Projectile Penetrating into Granular Medium, Key Engineering Materials, Vol.715, pp. 167-173, 2016.
Teruto Kanadani, Norihito Nagata, Makoto Hino, Koji Murakami, Keitaro Horikawa, Keiyu Nakagawa and Minoru Fukuhara: Effect of Electroless Ni-P Plating on Mechanical Properties of Al-4%Ge Alloy, Materials Science Forum, Vols. 879, pp.897-902, 2017.
Gaku Kitahara, Aya Tsuji, Takashi Asada, Tomohiro Suzuki, Keitaro Horikawa and Hidetoshi Kobayashi:Evaluation of the Corrosion Rate and Diffusible Hydrogen Content of High Tensile Steel under Loading with a Corrosion Environment, Corrosion Engineering, Vol. 67, pp. 159-166, 2018. ISSN:0892-4228
Teruto Kanadani, Norihito Nagata, Keitaro Horikawa, Keiyu Nakagawa and Makoto Hino: Effects of Surface Structure and Hydrogen on the Fatigue Strength of Electroless Nickel-Phosphorus Plated Al-2%Cu Alloy, Materials Science Forum, Vol. 941, pp.1821-1826, 2018.
Hidetoshi Kobayashi, Yuya Seo, Kinya Ogawa, Keitaro Horikawa and Kenichi Tanigaki: Numerical Analysis and Experiment for Stress Wave Propagation in Two Connected Cylindrical Bodies with Different Cross-Sectional Area and Same Mechanical Impedance, The European Physical Journal, EPJ Web of Conferences, Vol. 183, No.7, 01033 (2018) (DOI: 10.1051/epjconf/201818301033)
沖野友洋,永田恵輔,佐藤裕之,堀川敬太郎,小林秀敏:踏切衝突事故時の各因子が列車乗員の被害度に及ぼす影響評価,日本機械学会論文集 A編, Vo.84, No.869, p. 18-00270, 2019.
Gaku Kitahara, Aya Tsuji, Takashi Asada, Tomohiro Suzuki, Keitaro Horikawa, and Hidetoshi Kobayashi:Assessment of hydrogen absorption into steel during sacrificial dissolution of Zn and Zn coatings, Materials Transactions, Vol. 60, No.2, pp.306-315, 2019. (DOI: 10.2320/matertrans.M2018343)
Keitaro Horikawa, Takuya Matsubara, and Hidetoshi Kobayashi: Hydrogen charging of Al-Mg-Si-based alloys by friction in water and its effect on tensile properties, Materials Science and Engineering A, Vol.764, No.9, 133189, 2019.
堀川敬太郎,小林秀敏:純アルミニウムの水中表面摩擦による水素侵入およびその引張特性に及ぼす影響,日本金属学会誌 特集号「固体中の水素と材料特性IV」,第84巻,3号, pp. 68-73, 2020. doi:10.2320/jinstmet.JB201903
Keitaro Horikawa and Hidetoshi Kobayashi:Hydrogen charging of aluminum using friction in water ,Journal of Visualized Experiments, (155), e60711, doi:10.3791/60711 2020.
日野実,向井駿介,島田丈寛,岡田孝輝,堀川敬太郎:硫酸浴から各種亜鉛系めっきされた高強度鋼の水素脆性に及ぼすベーキングの効果,日本金属学会誌 特集号「固体中の水素と材料特性IV」,第84巻,3号, pp. 87-91, 2020.
日野実,土居悠帆,桑野亮一,小田幸典,堀川敬太郎:無電解Ni-Pめっきによる高強度鋼の水素脆性に及ぼすP含有量の影響,日本金属学会誌 特集号「固体中の水素と材料特性IV」,第84巻,3号, pp. 80-86, 2020.
堀川敬太郎,粂内彩里,北畑真太朗,小林秀敏:Naを含むAl-5%Mg合金の粒界破壊に及ぼす熱処理およびZr添加の影響,軽金属, 第70巻, 4号, pp. 136-143, 2020.
Keitaro Horikawa, Shintaro Kitahata, Sairi Kumeuchi and Hidetoshi Kobayashi:Intergranular fracture of Al-5%Mg alloys containing a high amount of sodium and its suppression by bismuth or indium additions,Materials Transactions, Vol.61, No.8, pp.1600-1606, 2020.
堀川敬太郎,谷山真希,小林秀敏:高純度アルミニウム板材に生じるブリスタの形態観察,軽金属, 第70巻, 9号, pp. 432-434, 2020.
M. Hino, S. Mukai, T. Shimada, K. Okada,and K. Horikawa:Effect of Baking on Hydrogen Embrittlement for High Strength Steel Treated with Various Zinc Based Electroplating from a Sulfate Bath,Materials Transactions, Vol.61, No.12, pp.2302-2306, 2020.
Keitaro Horikawa, Michiko Arayama and Hidetoshi Kobayashi: Quantitative detection of hydrogen gas release during slow strain rate testing in aluminum alloys, Materials Science Forum, Vol.1016, pp.568-573, 2021.
M. Hino, S. Mukai, T. Shimada, K. Okada,and K. Horikawa:Influences of Baking on Hydrogen Embrittlement for High Strength Steel Treated with Various Zinc Based Electroplating,Materials Science Forum, Vol.1016, pp.156-161, 2021.
R. Kido, R. Kuwano, M. Hino, K. Maruyama, S. Kurosawa, Y. Oda, K. Horikawa and T. Kanadani:Effects of Surface Treatment on Fatigue Properties of A5052-H14 and A2017-T4 Aluminum Alloys,Materials Transactions, Vol.62, No.1, pp.69-74, 2021.
M. Hino, Y. Doi, Y. Oda, and K. Horikawa:Effect of Phosphorus Content on Hydrogen Embrittlement for High Strength Steel Treated with Electroless Ni-P Electroplating from a Sulfate Bath,Materials Transactions, Vol.62, No.1, pp.75-81, 2021.
鍬田英樹,谷垣健一,日野実、福室直樹、堀川敬太郎:無電解Ni-Pめっき処理した6061-T6アルミニウム合金の引張特性に及ぼす水素の影響,軽金属, 第71巻, 5号, pp. 201-207, 2021.
Keitaro Horikawa:Quantitative monitoring of environmental hydrogen embrittlement of Al-Zn-Mg-based aluminum alloys via dynamic hydrogen detection and digital image correlation,Scripta Materialia, 199 (2021) 113853
堀川敬太郎,井藤匡史,日野実、福室直樹:高速圧縮変形を与えた高Zn組成Al-Zn-Mg合金の低ひずみ速度引張特性,軽金属, 第71巻,8号, pp. 353-355, 2021.
進野諒平,日野実,桑野亮一,門田宏治,佐藤雅亮,小田幸典,福室直樹,八重真治,堀川敬太郎,金谷輝人:A2017-T4アルミニウム合金の回転曲げ疲労強度に及ぼす無電解Ni-Pめっきの影響,軽金属, 第71巻, 10号, pp. 450-454, 2021.
進野諒平,日野実,桑野亮一,門田宏治,佐藤雅亮,小田幸典,福室直樹,八重真治,堀川敬太郎,金谷輝人:無電解Ni-PめっきしたA7075-T6511アルミニウム合金の疲労特性に及ぼすめっき膜組成の影響,軽金属, 第71巻, 12号, pp. 534-538, 2021.
R. Shinno, M. Hino, R. Kuwano, K. Monden, M. Sato, Y. Oda, N. Fukumuro, and K. Horikawa, and T. Kanadani:Effect of electroless Ni-P plating on rotary bending fatigue strength of A2017-T4 aluminum alloys,Materials Transactions, Vol.63, No.6, pp.872-876, 2022.
R. Shinno, M. Hino, R. Kuwano, K. Monden, K. Murayama, Y. Oda, N. Fukumuro, S. Yae, K. Horikawa and T. Kanadani: Fatigue property of electroless Ni-P plated A7075-T6511 alloy affected by plated film composition,Materials Transactions, Vol.63, 12号, pp.534-538, 2022.
日野実, 川上滉太、桑野亮一,門田宏治,佐藤雅亮,小田幸典,堀川敬太郎,金谷輝人:6061-T6アルミニウム合金の水素脆性に及ぼす表面処理の影響,表面技術, Vol. 73, No.12, pp. 82-84, 2022.
堀川敬太郎,鍬田英樹,福室直樹,日野実:表面亜鉛成膜によるAl-Zn-Mg系合金の環境水素脆性の抑制,日本金属学会誌 特集号「固体中の水素と材料特性V」 第87巻, 4号, pp. 108-113, 2023.
Keitaro Horikawa and Akio Ishii: Effect of purity on the internal morphology of blisters on aluminum surfaces, Results in Materials, Vol.21, 2024, 100522.
M. Hino, R. Shinno, K. Kawaue, R. Kuwano, K. Monden, M. Sato, Y. Oda, K. Horikawa and T. Kanadani: Evaluation of hydrogen embrittlement of electroless Ni-P plated 6061-T6 aluminum alloy by three-point bending and rotating bending fatigue tests,Materials Transactions, Vol.65, No.3, pp.302-307,2024.
Akio Ishii, Keitaro Horikawa, Masato Hoshino and Kentaro Uesugi: Strain field calculation through X-ray CT images by a point matching of the impurity using Voronoi diagram, Materialia, Vol.36, 2024, 102175.
K. Horikawa, M. Hino, K. Shimizu, H. Toda, M, Hoshino and K. Uesugi: Formation of hydrogen-related pores in Ni-P-plated Al-Zn-Mg alloys revealed by syncrotron X-ray CT and hydrogen analysis, International Journal of Hydrogen Energy, Vol.82 pp.801-809, 2024, .
日野実, 浅田歩夢,川上滉太、桑野亮一,黒坂成吾,大久保洋樹,田坂隆貴,堀川敬太郎:2017アルミニウム合金の機械特性に及ぼす各種めっきの影響,表面技術, Vol. 75, No.12, pp. 610-614, 2024. https://doi.org/10.4139/sfj.75.610
K. Kawaue, M. Hino, R. Kuwano, Y. Oda, K. Horikawa and T. Kanadani: Evaluation of hydrogen embrittlement of three aluminum alloys by three-point bending test affected by three types of plating,Materials Transactions, Vol.66, No.2, pp. 165-170, 2025.
M. Hino, R. Shinno, K. Kawaue, R. Kuwano, K. Monden, M. Sato, Y. Oda, K. Horikawa and T. Kanadani: Effect of microcracks formed in Zn-Ni alloy plating films on hydrogen embrittlement of high strength steel,Materials Transactions, Vol.66, No.2 pp. 186-190, 2025.
日野実, 小田原圭汰、浅田歩夢,野崎歩夢、村田知幸,堀川敬太郎:亜鉛めっきによる高強度鋼の水素脆性と予亀裂の可視化,表面技術, Vol. 76, No.5, pp. 45-47, 2025.
Akio Ishii, Keitaro Horikawa: Quantitative Analysis of Hydrogen Absorption in Pure Aluminum: Theoretical and Experimental Approaches, Materialia, 2025, 102449
M. Hino, A. Asada, K. Odawara, R. Kuwano, S. Kurosaka, H. Okubo, R. Tasaka, K. Horikawa: Effect of Baking on Hydrogen Embrittlement of 6061-T6 Aluminum Alloy by Various Electroless Ni-P Plating,Materials Transactions, 2026. (under review)
H. Tokunaga, K. Suzuki, A. Nomoto, H. Yamada, K. Horikawa and T. Kumagai: Effect of hydrogen time and strain rate on tensile ductility of Cr-Mo steel,Scripta Materialia, 2026 (in preparation).
(国際会議 Proceedings)
Yasuhiro Miura, Keitaro
Horikawa, Kazuhiro Yamada and Masaru Nakayama; Precipitation
Hardening in an Al-2.4Li-0.19Sc Alloy, Proceedings
of 4th International Conference of Aluminum
Alloys, No.2, pp.161-165, Atlanta, July 1994.
Kenichiro Ueda, Keitaro
Horikawa and Motohiro Kanno : A Small Amount of Additional
Antimony on Hot Ductility of Al-5%Mg Alloys
Containing a Trace Amount of Sodium, Light
Metals1997 (Proc. of 36th Annual Conference
of Metallurgists), Vol.2, p.507, Sudbery,
Aug. 1997.
Keitaro Horikawa, Shigeru Kuramoto and Motohiro Kanno : Effect
of Traces of Calcium and Strontium on Hot
Ductility of an Al-5.5mol%Mg Alloy, Proceedings
of 6th International Conference of Aluminum
Alloys, Vol.2, p1021, Toyohashi, July 1998.
Keitaro Horikawa, Shigeru Kuramoto and Motohiro Kanno : Improvement
of Hot Ductility in Al-Mg Base Alloys Caused
by Small Amount of Additional Elements, Proceedings
for the symposium Automotive Alloys 1999
from the 1999 TMS Annual Meeting & Exhibition,
pp.181-192, San Diego, March, 1999.
Keitaro Horikawa, Shigeru Kuramoto and Motohiro Kanno : High
Temparature Embrittlement Caused by Trace
Elements and Its Suppression by Additional
Elements in an Al-5.5mol%Mg alloy, Light
Metals 1999 (Proc. of 38th Annual Conference
of Metallurgists of CIM), pp.449-462, Quebec
City, Aug. 1999.
Keitaro Horikawa, Kenichi Yoshida and Kiyoshi Sakamaki :
High Temperature Embrittlement Caused by
Trace Elements and Its Suppression by Additional
Elements in an Al-5.5mol%Mg Alloy, Proc.
2nd Int. Conf. on Advanced Materials Development
and Performance, pp.268-273, Tokushima, Nov.
1999.
Kenichi Yoshida, Shinichi Kihara, Keitaro
Horikawa and Kiyoshi Sakamaki : Evaluation of Phase
Transformation Dynamics of Cu-Ai-Ni Shape
Memory Alloy Single Crystal by Acoustic emission
Method, Proc. 2nd Int. Conf. on Advanced
Materials Development and Performance, pp.304-307,
Tokushima, Nov. 1999.
Masatoshi Kunisawa, Kiyoshi Sakamaki, Kenichi Yoshida
and Keitaro Horikawa : Evaluation of TiN Coating Film due to Acoustic
Emission, Proc. 2nd Int. Conf. on Advanced
Materials Development and Performance, pp.722-725,
Tokushima, Nov. 1999.
Ryohei Yamashita, Kenichi Yoshida, Kiyoshi Sakamaki
and Keitaro Horikawa : Acoustic Emission Behavior during Tensile
Deformation of NiAl Intermetallic Compound,
Proc. 2nd Int. Conf. on Advanced Materials
Development and Performance, pp.912-915,
Tokushima, Nov. 1999.
Ryohei Yamashita, Kenichi Yoshida, Kiyoshi Sakamaki
and Keitaro Horikawa : Change of Acoustic Emission Activity due
to Ductility Improvement of NiAl Intermetallic
Compound, Proc. 15th Int. AE Symp., Progress
in Acoustic Emission X, pp.331-336, Tokyo,
Sep. 2000.
Kenichi Yoshida, Yu-Qin Wang, Keitaro
Horikawa, Kiyoshi Sakamaki and Kenji Kajiyama : Monitoring
of Microcracking during Heating Process of
Hydrogen Ion Doped Germanium and Silicon
Single Crystals by Acoustic Emission Method,
Proc. 15th Int. AE Symp., Progress in Acoustic
Emission X, pp.35-41, Tokyo, Sep. 2000.
Yoshiaki Akematsu, Kenichi Yoshida, Kiyoshi Sakamaki,
Keitaro Horikawa and Mitsuhiro Nishikawa: Detection and inspection
of acoustic emission (AE) behavior during
gas leak from a pipe, The 1st International
On-Board Seminar for the Development of Environment-friendly
Technology, pp.107-112, , October 16. 2001.
Keitaro Horikawa, Kenichi Yoshida and Kiyoshi Sakamaki :
Acoustic emission due to the intergranular
fracture of Al-Mg-Si base -alloys, Proc.
of the 25th European Conference on Acoustic
Emission Testing (EWGAE-2002), Vol.1, pp.239-246,
Prague, Sep.11-13. 2002.
Kenichi Yoshida, Keitaro
Horikawa, and Kiyoshi Sakamaki : Characteristics
of acoustic emission behavior during tensile
deformation of Ni-Al intermetallic compounds
with boron additive,Proc. of the 25th European Conference on
Acoustic Emission Testing (EWGAE-2002), Vol.2,
pp.287-294, Prague, Sep.11-13. 2002.
Yoshiaki Akematsu, Keitaro
Horikawa, Kenichi Yoshida and Kiyoshi Sakamaki :Characteristics
of acoustic emission waveform during gas
leak from a pipe,Proc. of the 25th European Conference on
Acoustic Emission Testing (EWGAE-2002), Vol.1,
pp.15-20, Prague, Sep.11-13, 2002.
Keitaro Horikawa, Kenichi Yoshida and Kiyoshi Sakamaki :Acoustic
Emission Accompanied by Grain Boundary Embrittlement
of an Al-Mg-Si Alloy , Proc. of the 16th
International Acoustic Emission Symposium
(IAES-16), pp.266-273, Tokushima, Nov.12-15.
2002.
Yoshiaki Akematsu, Kenichi Yoshida, Keitaro
Horikawa and Kiyoshi Sakamaki :Effects of pinhole
shapes with a divergent exit on AE characteristics
during gas leak , Proc. of the 16th International
Acoustic Emission Symposium (IAES-16), pp.319-324,
Tokushima, Nov.12-15. 2002.
Kenichi Yoshida, Keitaro
Horikawa and Kiyoshi Sakamaki :Effect of boron additives
on acoustic emission bahavior during tensile
deformation of Ni-Al intermetallic compounds
, Proc. of the 16th International Acoustic
Emission Symposium (IAES-16), pp.15-22, Tokushima,
Nov.12-15. 2002.
Keitaro Horikawa and Kenichi Yoshida; Hydrogen Microprint
with EBSP Analysis in Tensile-deformed Al-5%Mg
Alloy, Proc. of 9th International Conference
on Aluminum Alloys, pp.746-750, Brisbane,
Aug.2-5, 2004. IMPRESSIVE POSTER PRESENTATION AWARD
Keitaro Horikawa, Hidetoshi Kobayashi, Yusuke Takeuchi and
Kenichi Yoshida : Acoustic Emission of Fatigue-deformed
Aluminium Alloys for Automotive Panels, Proc.
of the 26th European Conference on Acoustic
Emission Testing (EWGAE-2004), pp315-322, Berlin, Sep.15-17, 2004.
Hidetoshi Kobayashi, Keitaro Horikawa and Yoshinori Morita: Mechanical Investigation
concerning Unfolding of Lilly Flower, Proc.
of the 3rd Asian Pacific Conference on Biomechanics
(AP Biomech 2007), Tokyo, Dec.S85, 2007.
Keitaro Horikawa,Yoshihiko Kawabata and Hidetoshi Kobayashi
: Detection of hydrogen evolution during
tensile deformation of a Ti-Ni alloy affected
by hydrogen embrittlement, Proc. of the 11th
World Conference on Titanium (JIMIC5), Vol.2,
pp.1229-1232, Kyoto,June 3-7, 2007.
Hidetoshi Kobayashi, Keitaro Horikawa and Yoshinori Morita: Unfolding of Potato
Flower as a Deployable Structure, Proc. of
the 6th International Conference on Computation
of Shell and Spatial Structures (IASS-IACM
2008), New York, May. 28-31 , 2008.
Hidetoshi Kobayashi and Keitaro Horikawa: Deployable Structure in Plants, Proc. of 3rd
Conference of Smart Materials, Structures
and Systems, Acireale, Italy, June8-13 , 2008.
Keitaro Horikawa, Hiroyuki Yamada, Kenichi Tanigaki, and
Hidetoshi Kobayashi: Effect of environmental
hydrogen on impact tensile properties of
6061 and 7075 aluminum alloys, Proc. of the
11th International Conference on Aluminum
Alloys (ICAA11), Aachen, Sept. 22-26, Vol. 2, pp, 1436-1442, 2008.
Hiroyuki Yamada, Keitaro Horikawa and Hidetoshi Kobayashi: Effect of strain
rate on high temperature embrittlement in
Al-5mass%Mg alloys containing traces of sodium,
Proc. of the 11th International Conference
on Aluminum Alloys (ICAA11), Aachen, Sept. 22-26, Vol. 2, pp, 1429-1435, 2008.
Hidetoshi Kobayashi, Keitaro Horikawa Masahiro Hori and Kinya Ogawa: Impact Lateral Compression Test of Thin-Walled Circular Tube Filled with Aluminum Foam, Proc. of ICM&P2008, Chicago, CD-ROM [MSEC_ICM&P2008-72095], 2008.
Keitaro Horikawa,Hiroyuki Yamada, Kenichi Tanigaki, Hidetoshi Kobayashi and Masashi Daimaruya: Visualization of Hydrogen
Accumulation during Impact Deformation and
Fracture of Aluminum Alloys, Proc. of ICM&P, CD-ROM [MSEC_ICM&P2008-72058], 2008,
Chicago, 2008.
M. Tane, T. Kawashima, K. Horikawa, H. Kobayashi and H. Nakajima: High Strain Rate Compression Behaviour of Porous Iron with Directional Pores, Proc. EUROMAT, 2009.
K. Watanabe, K. Ogawa, K. Tanaka, H. Kobayashi and K. Horikawa: Electromagnetic phenomena associated with dynamic deformation and fracture of rocks, Proc. 9th International DYMAT Conference, DYMAT2009 Vol.1/2, pp.757-763, 2009.
Keitaro Horikawa, Hiroyuki Yamada, and Hidetoshi Kobayashi : Visualization of Hydrogen during Tensile or Fatigue Deformation of Aluminum Alloys, Proc. of EIGHTEENTH International Symposium on PROCESSING AND FABRICATION OF ADVANCED MATERIALS [PFAM XVIII] December 12-14, Sendai, JAPAN, Vol. 1, pp, 109-118, 2009. INVITED PAPER
M. Tane, T. Kawashima, K. Horikawa, H. Kobayashi and H. Nakajima: Dynamic Compression Behavior of Lotus-type Porous Iron, Proc. International Symposium on Eco-materials Processing and Design (ISEPD2010), Osaka, 2010.
Keitaro Horikawa, Hidetoshi Kobayashi, and Motohiro Kanno : Hydrogen Evolution Behaviour during Tensile Deformation in Austenitic Stainless Steels Exposed to High Compressed Hydrogen Atmospheres, The 7th Pacific Rim International Conference on Advanced Materials and Processing, Cairns, Australia, August 1-5, 2010.
Keitaro Horikawa, Hiroyuki Yamada, and Hidetoshi Kobayashi: Hydrogen Evolution during Fatigue Deformation in 6061 and 7075 Aluminum Alloys, Proc. of the 12th International Conference on Aluminum Alloys (ICAA12), Yokohama, Sept. 5-9, pp, 371-376, 2010 .
Hidetoshi Kobayashi, Kensuke Nozaki, Keitaro Horikawa, and Keiko Watanabe: Strain-Rate Sensitivity of Plant-Delivered Polylactic Acid Resin Foam in Compression, Proc. of ISIE2010, Warsaw, 2010.
Hidetoshi Kobayashi, Kinya Ogawa, Keiko Watanabe and Keitaro Horikawa: Effect of Loading Rate in Three Point Pending Tests for Rock on Its Fracture Behaviour and Accompanying Electromagnetic Phenomenon, Proc.JSME/ASME 2011 International Conference on Materials and Processing, ICM&P2011, Oregon, 2011.
Hidetoshi Kobayashi, Keitaro Horikawa, Kinya Ogawa, Keiko Watanabe and Kensuke Nozaki: Dynamic and Quasi-staic Compression Tests for Polylactic Acid Resin Foam, Proc. of Thermec 2011 (International Conference on Processing & Manufacturing of Advanced Materials), Quebec City, 2011. INVITED PAPER
Keitaro Horikawa, Hiroyuki Yamada, Masahide Mutsuo and Hidetoshi Kobayashi: Effect of Strain Rate on Hydrogen Evolution during Deformation in Al-Zn-Mg Alloys, Proc. of Thermec 2011 (International Conference on Processing & Manufacturing of Advanced Materials), Quebec City, 2011. INVITED PAPER
Keitaro Horikawa and Hidetoshi Kobayashi: Effect of impact compression on the age-hardening of rapidly solidified Al-Zn-Mg base alloys, Proc. of the 13th International Conference on Aluminum Alloys (ICAA13), Pittsburgh, Jun. 3-7, 2012 .
Hiroyuki Toda, HIdeyuki Oogo, Hideki Tsuruta, Keitaro Horikawa, Kentaro Uesugi, Akihisa Takeuchi and Masakazu Kobayashi: Origin of ductile fracture in aluminum alloys, Proc. of the 13th International Conference on Aluminum Alloys (ICAA13), Pittsburgh, Jun. 3-7, 2012 .
Hidetoshi Kobayashi, Akihumi Yoshimoto, Kinya Ogawa, Keitaro Horikawa and Keiko Watanabe: Effects of Strain Rate and Elevated Temperature on Compressive Flow Stress and Absorbed Energy of Polyimide Foam, Proc. 10th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading, DYMAT2012 (The European Phsical Journal, EPJ Web of Conferences 26, 01035 (2012)) Freiburg, Sept. 2-7, 2012. (DOI: 10.1051/epjconf/20122601035)
Hiroyuki Yamada, Nagahisa Ogasawara, Yoko Shimizu, Keitaro Horikawa and Hidetoshi Kobayashi: Effect of High Strain Rate on Micro-Indentation Test in Pure Aluminum, Proc. 10th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading, DYMAT2012 (The European Phsical Journal, EPJ Web of Conferences 26, 01028 (2012)) Freiburg, Sept. 2-7, 2012. (DOI: 10.1051/epjconf/20122601028)
Hiroyuki Yamada, Masaki Tsurudome, Yoshimi Asano, Nagahisa Ogasawara and Keitaro Horikawa, Visualization of Hydrogen Evolution During Fatigue Deformation in 7075 Aluminum Alloy, Proceedings of 7th International Symposium on Advanced Science and Technology in Experimental Mechanics (7th ISEM' 12: ISEM-ACEM-SEM-7th ISEM' 12-Taipei), Taiwan (Taipei), 2012.
Hiroyuki Yamada, Keitaro Horikawa, Hidetoshi Kobayashi, Koji Nishihara and Nagahisa Ogasawara: Effect of Strain Rate on Compressive Properties in P/M Al-Zn-Mg-Cu Alloy, Proceedings of 7th International Symposium on Advanced Science and Technology in Experimental Mechanics (7th ISEM' 12: ISEM-ACEM-SEM-7th ISEM' 12-Taipei), Taiwan (Taipei), 2012.
Keitaro Horikawa, Shusuke Hokazono, Kenichi Tanigaki, and Hidetoshi Kobayashi: Detection of hydrogen release from the grain boudary fracture zone in 7075 aluminum alloy, Proc. of The 8th Pacific Rim International Conference on Advanced Materials and Processing, pp.3403-3408, Hawaii, USA, August 4-9, 2013.
Masaaki Tsurudome, Hiroyuki Yamada, Nagahisa Ogasawara, Keitaro Horikawa: Effect of Pre-fatigue Deformation under Humid Environment on Impact Tensile Properties in 7075 Aluminum Alloys, Proceedings of 8th International Symposium on Impact Engineering (ISIE2013), Osaka, Sept. 2-6, 2013.
Yuki Kitani, Keitaro Horikawa, Kenichi Tanigaki, Hidetoshi Kobayashi, Tomo Ogura and Akio Hirose: Effect of Impact Compression on Age Hardening Behavior of Aluminum Alloys, Proceedings of 8th International Symposium on Impact Engineering (ISIE2013), Osaka, Sept. 2-6, 2013.
Akihumi Yoshimoto, Hidetoshi Kobayashi, Keitaro Horikawa, Keiko Watanabe and Kinya Ogawa: Dynamic and Quasi-static Compressive Deformation Behaviour of Polyimide Foam at Various Elevated Temperature, Proceedings of 8th International Symposium on Impact Engineering (ISIE2013), Osaka, Sept. 2-6, 2013.
Kenichi Tanigaki, Ye Fei Zhang, Kinya Ogawa, Hidetoshi Kobayashi and Keitaro Horikawa: Numerical Analysis for Impact Phenomena of Projectile into Particulate Materials, Proceedings of 8th International Symposium on Impact Engineering (ISIE2013), Osaka, Sept. 2-6, 2013.
Masaki Tsurudome, Hiroyuki Yamada, Nagahisa Ogasawara and Keitaro Horikawa: Effect of Second Phase Inclusions on Hydrogen Evolution During Fatigue Deformation in 7075 Aluminum Alloy, Proceedings of Jointed Conference on International Conference on Experimental Mechanics 2013 (ICEM 2013) and the Twelfth Asian Conference on Experimental Mechanics (ACEM12), Thailand (Bangkok), 2013.
Keitaro Horikawa, Shusuke Hokazono and Hidetoshi Kobayashi: Dynamic Observation of Hydrogen Gas Release during Crack Propagation in Al-Zn-Mg Alloy, Thermec'2013 Book of Abstracts, p.245, International Conference on Processing & Manufacturing of Advanced Materials, Las Vegas, 2013. INVITED PAPER
Hiroyuki Yamada, Masaki Tsurudome, Nagahisa Ogasawara and Keitaro Horikawa: Tensile Properties of 7075 Aluminum Alloys Subjected to Pre-fatigue in Humid Environment, Proc. of the 14th International Conference on Aluminum Alloys (ICAA14), Trondheim, Norway, Jun. 15-19, 2014 .
Keitaro Horikawa, Yuki Kitani, Tomo Ogura, Makoto Takahashi, Akio Hirose and Hidetoshi Kobayashi: Point defect clusters induced by high-speed deformation and its effect on age hardening in 6061 aluminum alloy, Proc. of the 14th International Conference on Aluminum Alloys (ICAA14), Trondheim, Norway, Jun. 15-19, 2014 .
LeBrun Tyler, Keitaro Horikawa Kenichi Tanigaki and Hidetoshi Kobayashi: Strain Rate Sensitivity and Material Anisotropy of Additive Manufactured AISI 630 Stainless Steel, Proc. of ICMP 2014, Detroit, USA, 2014.
LeBrun Tyler, Kenichi Tanigaki, Keitaro Horikawa and Hidetoshi Kobayashi: Macroscopic Alloy Segregation Reulting from the Selective Laser Melting of 17-4 PH Stainless Steel, Proc. of European Mechanics of Materials Conference, Gothenburg, Sweden, August 27-29, 2014.
Hidetoshi Kobayashi, Takeshi Yamauchi,Keitaro Horikawa: Mechanical Characteristics of Materials and Structure of Giant Water Lilly Leaf, Proc. The 15th IUMRS-International Conference in Asia (IUMRS-ICA 2014), Fukuoka, August 24-30, 2014.
Peng Zhang, Hiroyuki Toda, Keitaro Horikawa, Kentaro Uesugi, Akihisa Takeuchi, Yoshio Suzuki, Nobuto Sakaguchi, Yoshio Watanabe : Hydrogen trapping behaviors in Al-Zn-Mg-Cu alloys, Proceedings
for the symposium Light Metals
from the 144th TMS Annual Meeting & Exhibition,
Orland, USA, March 15-19, 2015.
Keitaro Horikawa, Kenichi Tanigaki and Hidetoshi Kobayashi : Hydrogen visualization in the deformed microstructure of Al-Zn-Mg base alloys, Proceedings
for the symposium Light Metals
from the 144th TMS Annual Meeting & Exhibition, pp.341-345,
Orland, USA, March 15-19, 2015.
Akifumi Yoshimoto, Kenichi Tanigaki, Keitaro Horikawa, and Hidetoshi Kobayashi: The Compressive Behaviour and Constitutive Equation of Polyimide Foam in Wide Strain Rate and Temperature Range, Proc. 11th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading, DYMAT2015, Lugano, Switzerland, Sept. 7-11, 2015.
Kenichi Tanigaki, Toru Idouji, Keitaro Horikawa, Hidetoshi Kobayashi and Kinya Ogawa: Numerical Study on Dynamic Compressive Deformation and Elasto-Plastic Wave Propagation of Foam Materials, Proc. 11th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading, DYMAT2015, Lugano, Switzerland, Sept. 7-11, 2015.
A. Yoshimoto, K. Horikawa, H. Kobayashi, and K. Tanigaki: Compressive Deformation of Expanded Polylactic Acid Resin Subjected to Quasi-Static and Dynamic Loadings at Wide Temperatures, Proc. International Conference on Advanced Technology in Experimental Mechanics, ATEM2015, Toyohashi, Oct. 4-8, 2015.
K. Tanigaki, T. Ishida, K. Horikawa, H. Kobayashi: Shock Synthesis of Hexagonal Diamond Using Single-Stage Powder Gun, Proc. International Conference on Advanced Technology in Experimental Mechanics, ATEM2015, Toyohashi, Oct. 4-8, 2015.
Hidetoshi Kobayashi, Keitaro Horikawa, Takeshi Yamauchi: Mechanical Consideration for Leaf of Santa Cruz water lily, 26th International Conference on Adaptive Structures and Technologies (ICAST2015), Kobe, Oct.14-16, 2015. (Invited)
Hidetoshi Kobayashi, Takeshi Yamauchi, Keitaro Horikawa, Hirokatsu Aramaki: A Study of Lily Flower Bud from Mechanical Point of View, Engineering Neo-Biomimetics Y, Kyoto, Oct.22, 2015.
Hidetoshi Kobayashi, Keitaro Horikawa, Nakamichi Tominaga, Takeshi Yamauchi: Geometry in Closing Motion of Leaflet of Sensitive Plant (Mimosa Pudica), 8th Plant Biomechanics International Conference, Nagoya, Nov.30 - Dec. 4, 2015.
Keitaro Horikawa, Tomo Ogura, and Hidetoshi Kobayashi : Strain Rate Dependency on Pre-deformation for Age-hardening in an Al-Mg-Si Alloy, Proc. of 24th International Symposium on Processing and Fabrication of Advanced Materials [PFAM 24] December 18-20, Osaka, JAPAN, 2015. INVITED PAPER
Yui Miyakawa, Keitaro Horikawa, Tomo Ogura, and Hidetoshi Kobayashi : Effects of High-speed Compression on Hydrogen Desorption Behavior in 6061 and 7075 Aluminum Alloys, Proc. of 24th International Symposium on Processing and Fabrication of Advanced Materials [PFAM 24] December 18-20, Osaka, JAPAN, 2015.
Go Endo, Keitaro Horikawa, Tomo Ogura, Kenichi Tanigaki, and Hidetoshi Kobayashi : Effects of High-speed Compression on Hydrogen Desorption Behavior in 6061 and 7075 Aluminum Alloys, Proc. of 24th International Symposium on Processing and Fabrication of Advanced Materials [PFAM 24] December 18-20, Osaka, JAPAN, 2015.
Hidetoshi Kobayashi, Keitaro Horikawa, Kenichi Tanigaki, and Kinya Ogawa: Impact Compressive Fracture of Synthetic Quartz Accompanied by Electro-magnetic Phenomenon, Proceedings of 9th International Symposium on Impact Engineering (ISIE2016), Tainan, Sept. 5-9, 2016.
Shinnosuke Takeda, Kinya Ogawa, Kenichi Tanigaki, Keitaro Horikawa, and Hidetoshi Kobayashi: DEM/FEM Simulations of Dynamic Response of Projectile Penetrating into Granular Medium, Proceedings of 9th International Symposium on Impact Engineering (ISIE2016), Tainan, Sept. 5-9, 2016.
Yuya Seo, Kenichi Tanigaki, Keitaro Horikawa, Hidetoshi Kobayashi, and Kinya Ogawa : Examination of Resistant Method of Reflected Wave in Elastic Body, The 10th Asia-Pacific Conference on Fracture and Strength (APCFS2016), Toyama, Sep. 19-22, 2016.
Yuya Seo, Kinya Ogawa, Kenichi Tanigaki, Keitaro Horikawa, and Hidetoshi Kobayashi: Propagation Behavior of Stress Waves in Two Connected Elastic Bodies with Mechanical Impedance Matching, Proc. of ICMP 2017, 04-08 June 2017, Los Angels, USA, 2017.
Keitaro Horikawa, Kenichi Tanigaki and Hidetoshi Kobayashi: Microstructural evolution in aluminum alloys caused by high-speed deformation, Proc. of ICMP 2017, 04-08 June 2017, Los Angels, USA, 2017.
Keitaro Horikawa and Hidetoshi Kobayashi: Detection of Hydrogen Gas Release from Aluminum Alloys during Deformation, Proc. of FiMPART, Bordeaux, France, 2017. INVITED PAPER
Keitaro Horikawa: Recent Topics on the Study of Hydrogen Embrittlement in Metals for Hydrogen Energy Systems, Proc. of the 2nd Symposium on Failure Analysi and Inspection for Materials and Products of ASEAN Countries, 16-18 Aug. 2017, Bangkok, Thailand, pp, 1-5, 2017. KEYNOTE SPEAKER
Keitaro Horikawa, Shintaro Kitahata and Hidetoshi Kobayashi: Grain Boundary Fracture of Al-Mg Base Alloys Containing Traces of Sodium, Prof. Conference of Metallurgists, COM2017, Vancouver, Canada, 2017.
Takuya Matsubara, Keitaro Horikawa, Kenichi Tanigaki and Hidetoshi Kobayashi: Hydrogen Introduction to 6061 Aluminum Alloy by Friction in Water and Its Effect on Mechanical Properties, Proc. of the 16th International Conference on Aluminum Alloys (ICAA16), Montreal, Canada, Jun. 17-22, 2018.
Sairi Kumeuchi, Keitaro Horikawa, Kenichi Tanigaki and Hidetoshi Kobayashi: Effects of Sodium and Zirxonium on Intergranular Embrittlement of Al-5%Mg alloys, Proc. of the 16th International Conference on Aluminum Alloys (ICAA16), Montreal, Canada, Jun. 17-22, 2018.
Hidetoshi Kobayashi, Yuya Seo, Kinya, Ogawa, Keitaro Horikawa, Ken-ichi Tanigaki: Numerical Analysis and Experimental for Stress Wave Propagation in Two Connected Cylindrical Bodies with Different Cross-Sectional Area and Same Mechanical Impedance, Proc. 12th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading, DYMAT2018, France, Sept. 9-14, 2018.
Hidetoshi Kobayashi, Kinya Ogawa, Kenichi Tanigaki, Keitaro Horikawa: A new method to lengthen duration of tensile wave using extended rods with impedance matching, Proceedings of International Symposium on Impact Engineering 2019 (ISIE2019), Gmunden, Austria, July. 2-5, 2019.
Tomohiro Okino, Keisuke Nagata, Hiroyuki Sato, Keitaro Horikawa, and Hidetoshi Kobayashi: Impact test of typical Japanese railway vehicle structure against a rigid wall for validating numerical simulation, Proceedings of International Symposium on Impact Engineering 2019 (ISIE2019), Gmunden, Austria, July. 2-5, 2019.
Makoto Hino, Shunsuke Mukai, Takehiro Shimada, Koki Okada, Keitaro Horikawa: Influences of Baking Time on Hydrogen Embrittlement for High Strength Steel Treated with Various Zinc Based Electroplating, Thermec'2021, International Conference on Processing & Manufacturing of Advanced Materials, online, 2021.
Keitaro Horikawa: Strain rate effect on hydrogen behavior in aluminum alloys during deformation, 32nd Canadian Materials Science Coference, June. 2-4, 2021. (Invited)
Takahiro Sakata and Keitaro Horikawa: Dynamic measurement of hydrogen release of 5083 aluminum alloys accompanied with dynamic strain aging, Proc. of the 18th International Conference on Aluminum Alloys (ICAA18), Toyama, Sept. 4-8, 2022.
Keitaro Horikawa and Takuma Sugahara: Dynamic and quantitative measurement of hydrogen release during environmental embrittlement of aluminum alloys , Proc. of the 18th International Conference on Aluminum Alloys (ICAA18), Toyama, Sept. 4-8, 2022. (Invited)
Kota Kawaue, Ryohei Shinno, Ryoichi Kuwano, Makoto Hino, Yukinori Oda, Keitaro Horikawa, and Teruto Kanadani: Effects of various platings on fatige properties of A2017-T4 aluminum alloy, Proc. of the 18th International Conference on Aluminum Alloys (ICAA18), Toyama, Sept. 4-8, 2022.
Makoto Hino, Ryohei Shinno, Ryoichi Kuwano, Yukinori Oda, Keitaro Horikawa, and Teruto Kanadani: Evaluation of Hydrogen Embrittlement for Aluminum Alloys by Fatigue Testing, Proc. of the 18th International Conference on Aluminum Alloys (ICAA18), Toyama, Sept. 4-8, 2022.
Keitaro Horikawa, Makoto Hino, Kazuyuki Shimizu, Hiroyuki Toda, Masato Hoshino and Kentaro Uesugi: 3D measurement of internal microstructures of Al-Zn-Mg based alloy with Ni-P plating by means of synchrotron X-ray CT , Proc. of The Advanced Technology in Experimental Mechanics and International DIC Society Joint Conference 2023, Fukui, Oct.9-11, 2023.
Keitaro Horikawa, Makoto Hino, Kazuyuki Shimizu, Hiroyuki Toda, Masato Hoshino and Kentaro Uesugi: 3D microstructural analysis of electroless Ni-P-plated Al-Zn-Mg alloys by means of synchrotron X-ray CT and dynamic hydrogen detection , Proc. of The 11th Pacific Rim International Conference on Advanced Materials and Processing, PRICM 11, Jedu, Nov.11-23, 2023 (Keynote).
Keitaro Horikawa, Makoto Hino, Kazuyuki Shimizu, Hiroyuki Toda, Masato Hoshino and Kentaro Uesugi: 3D observation of hydrogen-related pores in surface-modified Al-Zn-Mg alloys using synchrotron X-ray CT, Proc. of The 19th International Conference on Aluminum Alloys, ICAA19, Atlanta, June 21-26, 2024.
Keitaro Horikawa, Makoto Hino, Masato Hoshino and Kentaro Uesugi: Evaluation of Hydrogen-induced Pores in Ni-P-plated Al-Zn-Mg Alloys Using Synchrotron X-ray Computed Tomography, Light Metals 2025, The TMS 145 Annual Meeting and Exhibition, TMS 2025, Las Vegas, March 22-26, 2025.
Keitaro Horikawa, Makoto Hino, Masato Hoshino and Kentaro Uesugi: Evaluation of Crack Propagation in Hydrogen-Charged Al-Zn-Mg-Based Alloys Using Synchrotron X-ray Imaging , Proc. of The 12th Pacific Rim International Conference, 9-13 Aug., Gold Coast, Australia, 2026.
Keitaro Horikawa:Hydrogen-induced Pores in Ni-P-plated Al-Zn-Mg Alloys Using Synchrotron X-ray Computed Tomography, SPring8/SACLA Research Frontiers 2025, 2026 (in press).
Helder Nguelume, Keitaro Horikawa, Kenichi Yoshida, and Kiyoshi Sakamaki : Acoustic Emission Behavior during Tensile Deformation and Fracture in Al-Mg-Si Base Alloys, 第99回軽金属学会秋期大会,埼玉,平成12年11月
H. Mamede, K. Horikawa, K. Tanigaki, H. Kobayashi:Hydrogen Charging in Austenitic Stainless Steels by Means of Friction in Water,第177回日本鉄鋼協会春期大会,東京,平成31年3月20日-22日
H. Mamede, K. Horikawa, K. Tanigaki, H. Kobayashi:Effect of Cathodic Charging Parameters on Hydrogen Absorption for Austenitic Stainless Steel,第178回日本鉄鋼協会秋期大会,岡山,令和元年9月12日 ポスター発表賞(努力賞)