国際会議 口頭発表・ポスター発表


2016年度

  ■The 9th Pacific Rim International Conference on Advanced Materials and Processing (PRICM9)   2016,Aug.1-5   <Japan, Kyoto>

    ◯ Y.Aoyagi(口頭), T.Uoji, C.Watanabe, M.Kobayashi, Y.Todaka, H.Miura
      ”Multiscale Simulation on Effect of Hetero-nanostructures on Mechanical Properties of Severe Rolled Stainless Steel”

  ■The 9th International Conference on Processing & Manufacturing of Advanced Materials(Thermec 2016)   2016,May.29-Jun.3   <Austria, Graz>

    ◯Y.Todaka(口頭), N.Adachi, Y.Yokoyama, M.Umemoto
      ”Mechanical property evolution of Zr-based bulk metallic glasses induced by high-pressure torsion straining”

    ◯C.Watanabe(口頭), Y.Aoyagi, Y.Todaka, M.Kobayashi, H.Miura
      ”Development of hetero-nano structure in a 316LN austenitic stainless steel during cold-rolling”

    ◯H.Yilmazer(口頭), B.Dikici, M.Niinomi, M.Nakai, H.Lui, Y.Todaka, A.Nuri Ozcivan
      ”Electrochemical behaviors of biomedical nano-grained β-type titanium alloys”

2015年度

  ■Australia-Japan Workshop on Neutron Science   2016,Mar.4   <Japan, Ibaraki>

    ◯Y.Oba(口頭), N.Adachi, Y.Todaka, K.Yamamoto, M.Sugiyama
      ”Anomalous magnetic small-angle neutron scattering in severely deformed pure Fe”

  ■TMS2016 145th ANNUAL MEETING & EXHIBITION   2016,Feb.14-18   <U.S.A, Nashville>

    ◯N.Adachi(口頭), Y.Todaka, M.Umemoto
      ”Thermal Stability of ω-phase in Pure Ti Formed By High-pressure Torsion”

  ■The 3rd International Conference of Global Network for Innovative Technology (IGNITE2016)   2016,Jan.27-29   <Malaysia, Penang>

    ◯Y.Todaka(口頭), M.Horii, S.Tachibana, N.Adachi, R.Kokawa, S.Moriguchi, M.Umemoto   Keynote
      ”Tribological Behavior under Lubricants in Nanostructured Steels Produced by Heavy Plastic Deformation Processes”

    ◯N.Adachi(口頭), Y.Todaka, M.Umemoto
      ”Mechanical Property and Transformation Behavior of Bulk Nano Crystalline ω-phase Formed by High-pressure Torsion process”

    ◯N.Miyazaki(ポスター), Y.Todaka, R.Fujimoto, K.Shimizu, N.Adachi, M.Umemoto, H.Miyazaki, Y.Nishino
      ”Structure and Thermoelectric Property of Bulk CaMgSi Intermetallic Compound”

  ■the Twenty-Fourth International Symposium on Processing and Fabrication of Advanced Materials (PFAM XXIV)   2015,Dec.18-20   <Japan, Osaka>

    ◯Y.Todaka(口頭), M.Horii, S.Tachibana, N.Adachi, M.Umemoto   Invited
      ”Effect of Lattice Defects on Tribological Behavior under Lubricants in Nanostructured Steels”

  ■The 13th World Conference on Titanium (Ti-2015)   2015,Aug.16-20   <U.S.A, San Diego>

    ◯Y.Todaka(口頭), N.Adachi, H.Suzuki, M.Umemoto
      ”Tensile Property of Bulk Nanostructured ω-Ti Produced by High-pressure Torsion Straining and the details are as follows”

    ◯H.Yilmazer(口頭), M.Niinomi, K.Cho, M.Nakai, Y.Todaka, B.Dikici, M.Sen, H.Shiku, T.Matsue
      ”Mechanical and Surface Functionalities of Nanostructured β-type Titanium Alloys through Severe Plastic Deformation”

  ■the 17th International Conference on Environmental Degradation of Materials in Nuclear Power Systems   2015,Aug.9-13   <Canada, Ottawa>

    ◯R.Ishibashi(口頭), Y.Todaka
      ”Effect of severe-cold-working on microstructure of Zircaloy 2”

  ■5th International Conference on Recent Advances in Materials, Minerals & Environment (RAMM)   2015,Aug.4-6   <Malaysia, Penang>

    ◯Y.Todaka(口頭), N.Adachi, T.Idobata, T.Nakakita, M.Umemoto   Invited
      ”Pressure-Induced Phase Transformation Behavior in Pure Ti, Pure Zr, and Fe-Mn alloys by High-Pressure Torsion Straining”

2014年度

  ■The 13th International Symposium on Physics of Materials (ISPMA 13)   2014,Aug.31-Sep.4   <Czech Republic, Prague>

    ◯Y.Todaka(口頭), N.Adachi, T.Idobata, T.Nakakita, M.Umemoto
      ”Pressure-Induced Phase Transformation Behavior in Pure Ti, Zr, and Hf by High-Pressure Torsion Straining”

    ◯N.Adachi(口頭), Y.Todaka, K.Shintani, Y.Yokoyama, M.Umemoto
      ”Pronounced β-relaxation in severely deformed bulk metallic glass by high-pressure torsion straining”

  ■The 17th International Conference on Textures of Materials (ICOTOM-17)   2014,Aug.24-29   <Germany, Dresden>

    ◯N.Adachi(口頭), Y.Todaka,  T.Idobata, H.Suzuki, M.Umemoto
      ”Texture evolution of high-pressure ω phase in pure Ti and Zr by high-pressure torsion - straining”

  ■The 6th International Conference on Nanomaterials by Severe Plastic Deformation (NANOSPD6)   2014,Jun.30-Jul.4   <France, Metz>

    ◯Y.Todaka(口頭), T.Otsuki, S.Morooka, S.Harjo, M.Umemoto
      ”Texture evolution of high-pressure ω phase in pure Ti and Zr by high-pressure torsion - straining”

2013年度

  ■TMS2014 143rd Annual Meeting & Exhibition   2014,Feb.16-20   <U.S.A, San Diego>

    ◯N.Adachi(口頭), Y.Todaka, K.Shintani, Y.Yokoyama, M.Umemoto
      ”Effect of severe plastic deformation on mechanical property and relaxation behavior of Zr-based metallic glass”

  ■The Fifth World Tribology Congress(WTC2013)   2013,Sep.8-12   <Italy, Torino>

    ◯H.Kato(口頭), Y.Todaka
      ”Wear Properties of Sub-microcrystalline Pure Iron Produced by Severe Plastic”

2012年度

  ■The 5th International Symposium on Designing, Processing and Properties of Advanced Engineering Materials (ISAEM-2012)
                                                      2012,Nov.5-8   <Japan, Toyohashi>

    ◯R.Ueji(ポスター), Y.Nagaki, A.Otsuka, Y.Todaka
      ”Strain Rate Dependence of Hydrogen Embrittlement of Low Carbon Steel Martensite”

    ◯R.Fujimoto(ポスター), Y.Todaka, Y.Adachi, K.Shimizu, M.Umemoto   Best Poster Award 受賞 (共著者も受賞)
      ”Synthesis and Thermoelectric Characterization of Ca-Mg-Si Alloys”

    ◯N.Adachi(ポスター), Y.Todaka, K.Shintani, Y.Yokoyama, M.Umemoto   Best Poster Award 受賞 (共著者も受賞)
      ”Effect of Residual Stress on Hardness in Deformed Zr50Cu40Al10 Bulk Glassy Alloy by High-Pressure Torsion -Straining”

    ◯N.Adachi(ポスター), Y.Todaka, K.Shintani, Y.Yokoyama, M.Umemoto
      ”Fabrication of Zr-based Binary Bulk Glassy Alloys by High-Pressure Torsion -Straining”

    ◯K.Shintani(ポスター), Y.Todaka, N.Adachi, Y.Yokoyama, M.Umemoto
      ”Improvement of Plastic Elongation in Zr50Cu40Al10 Bulk Glassy Alloy Depending on Excess Free Volume Introduced by Severe Plastic Deformation”

    ◯T.Idobata(ポスター), Y.Todaka, N.Adachi, M.Iketani, M.Umemoto
      ”Stabilization and Deformation Behavior of ω-Phase in Pure Zr by High-Pressure Torsion -Straining”

    ◯Y.Adachi(ポスター), Y.Todaka, R.Fujimoto, M.Umemoto
      ”Thermoelectric Property of Ga Doped Mg2Si Synthesized by Mechanical Ball-Milling and Spark Plasma”

    ◯Y.Todaka(ポスター), K.Morisako, A.Otsuka, R.Ueji, T.Omura, K.Kobayashi, M.Umemoto
      ”Tensile Property of Hydrogen-Charged Submicrocrystalline Ultra-Low Carbon Steel Produced by High-Pressure Torsion - Straining”

  ■The 2012 International Hydrogen Conference   2012,Sep.9-12   <U.S.A., Moran, Wyoming>

    ◯Y.Todaka(ポスター), K.Morisako, R.Ueji, A.Otsuka, M.Umemoto
      ”Influence of strain rate on hydrogen embrittlement in submicrocrystalline Ultra-Low carbon steel produced by high-pressure torsion straining”

  ■International Workshop on Bulk Nanostructured Metals    2012,June.26-29   <Japan, Kyoto>

    ◯H.Kato(ポスター), Y.Todaka
      ”Tribological Properties of Sub-microcrystalline Ultra-Low Carbon Steel Produced by High-Pressure Torsion Straining”

    ◯R.Ueji(ポスター), T.Yoshisako, Y.Todaka
      ”Effect of grain size and grain boundary precipitates on ductility of Hadfield steel at high speed deformation”

    ◯N.Adachi(ポスター), Y.Todaka, M.Umemoto, H.Suzuki
      ”Crystalline orientation relations of α-to ω-phase in pressure-induced transformation of Zr by high-pressure torsion straining”

    ◯Y.Todaka(口頭), N.Adachi, H.Sato, M.Iketani, N.Tochigi, R.Ueji, M.Umemoto   Invited
      ”Pressure-Induced Phase Transformation Behavior in Pure Ti, Pure Zr, and Fe-Mn alloys by High-Pressure Torsion Straining”

  ■NIMS conference 2012    2012,June.4-6   <Japan, Ibaraki>

    ◯N.Adach(ポスター)i, Y.Todaka, K.Shintani, Y.Yokoyama, M.Umemoto
      ”Mechanical Property Evolution of Zr50Cu40Al10 Bulk GlassyAlloy Deformed by High-pressure Torsion Straining”

    ◯Y.Todaka(ポスター), H.Sato, N.Tochigi, R.Ueji, M.Umemoto
      ”Pressure-Induced phase transformation behavior in α-MnSteels by high-pressure torsion straining”

  ■The 3rd International Symposium on Steel Science (ISSS 2012)    2012,May.27-30   <Japan, Kyoto>

    ◯I.Shuro(ポスター), H.H.Kuo, Y.Todaka, M.Umemoto
      ”Phase transformations in SUS304 deformed by HPT”

    ◯R.Ueji(ポスター), T.Yoshisako, Y.Todaka, T.Mizuguchi, Y.Tanaka, K.Shinagawa
      ”Effect of solute carbon on high speed deformation of Hadfield steel”

    ◯Y.Todaka(ポスター), K.Morisako, Y.Matsumoto, R.Ueji, A.Otsuka, M.Umemoto
      ”Influence of punching velocity in small punch test on hydrogen embrittlement in ultra-low carbon steel with ultrahigh density lattice defects”

2011年度

  ■1st Japan-Thailand Friendship International Workshop on Science Technology & Technical Education, Hand-making Education, Engineering Education,
     Environmental Education 2012( Proceedings of JTHES'12)                     2012,Mar.28-29   <Japan, Miyazaki>

    ◯A.Takahashi, N.Yamamoto, T.Higashi, T.Toyohiro, Y.Todaka
      ”Ductile to Brittle Transition Temperature Behavior of Pure Fe Produced by HPT Method”

  ■Symposium on Materials Processing and Interfaces from 141st TMS Annual Meeting and Exhibition    2012,Mar..11-15   <U.S.A., Orlando>

    ◯M.Ueda, H.Matsuhira, Y.Takasaki, M.Ikeda, Y.Todaka
      ”Recrystallization behavior in Ti-13Cr-1Fe-3Al alloy after severe plastic deformation”

  ■The 6th International Symposium on Advanced Science and Technology in Experimental Mechanics (6th ISEM'11-Sendai/Kansai)    2011,Nov.3-5   <Japan, Osaka>

    ◯R.Arishima(ポスター), T.Uchimura, T.Higashi, A.Takahashi, N.Yamamoto, T.Toyohiro, Y.Todaka
      ”Mechanical Properties on Pure Fe Fabricated by Severe Plastic Deformation”

  ■International Conference on Processing & Manufacturing of Advanced Materials (THERMEC'2011)    2011,Aug.1-5   <Canada, Quebec>

    ◯Y.Todaka(口頭), K.Koujina, T.Yakushiji, H.Nagai, Y.Iguchi, M.Umemoto   Invited
      ”Mechanical Properties of Surface-Nanocrystallized Carbon-Steels Produced by SPD.”

2010年度

  ■International Symposium on Giant Straining Process for Advanced Materials (GSAM-2010)    2010,Nov.19-22   <Japan, Fukuoka>

    ◯I.Shuro(ポスター), H.C.Wang, M.Umemoto, H.H.Kuo, Y.Todaka   Excellent Poster Award 受賞
      ”A comparative study of the annealing behavior of HPTed austenitic stainless steels”

    ◯Y.Todaka(口頭), K.Morisako, Y.Matsumoto, R.Ueji, Y.Nagaki, M.Umemoto
      ”Hydrogen embrittlement behavior of bulk nanostructured pure Fe produced by high-pressure torsion straining”

    ◯M.Umemoto(口頭), I.Shuo, H.C.Wang, Y.Todaka, H.H.Kuo
      ”Strain induced transformation and annealing behavior of SUS304 stainless steel processed by HPT”

2009年度

  ■TMS(Materials Science & Technology) 2010 Annual Meeting & Exhibition    2010,Feb.14-18   <U.S.A., Seattle WA>

    ◯Y.Todaka(口頭), H.Azuma, K.Irie, N.Adachi, Y.Ohnishi, M.Umemoto   Invited
      ”Microstructure Evolutions in Ti and Zr by Pressure-Induced Phase Transformation under HPT-Straining”

  ■Eighteenth International Conference on Processing and Fabrication of Advanced Materials (PFAM XVIII)    2009,Dec.12-14   <Japan, Sendai>

    ◯K.Koujina(ポスター), Y.Todaka, T.Yakushiji, H.Nagai, Y.Iguchi, M.Umemoto   Best Poster Award 受賞
      ”Formation of nanocrystalline structure at worn surface in carbon steel by wearing process”

    ◯S.Farjami(口頭), K.Tsuchiya, Y.Todaka, M.Umemoto
      ”Nanocrystallization of β-titanium alloys by high-pressure torsion”

    ◯O.Ciuca(口頭), K.Tsuchiya, Y.Yokoyama, Y.Todaka, M.Umemoto
      ”Structural refinement of Ni3Al intermetallic compound by high-pressure torsion”

    ◯Y.Todaka(口頭), H.Azuma, Y.Ohnishi, M.Umemoto   Invited
      ”High-functionalization of Mechanical property in Ti and Zr by pressure-induced phase transformation under high-pressure torsion straining”

    ◯K.Morisako(口頭), Y.Todaka, M.Kumagai, Y.Matsumoto, M.Umemoto
      ”Influence of hydrogen on mechanical properties of submicrocrystalline ultra-low carbon steel produced by high-pressure torsion straining”

    ◯K.Tsuchiya(口頭), S.Yamamoto, Y.Yokoyama, H.Kato, Y.Todaka, M.Umemoto
      ”Severe plastic deformation of Zr-Cu-Al metallic glass in as-cast and crystallized conditions”

    ◯M.Umemoto(口頭), Y.Todaka, N.Wu, Y.Ohnishi, H.Azuma, K.Tsuchiya
      ”Effect of strain gradient and pressure in HPT on the hardening and grain refinement of metals”

  ■The 5th International Conference on Mechanical Stress Evaluation by Neutrons and Synchrotron Radiation (MECA SENS-V)
                                                      2009,Nov.10-12   <Japan, Mito>

    ◯H.Azuma(ポスター), Y.Todaka
      ”Influence of pressure and shear deformation on stabilization of ω -Zr produced by high-pressure torsion straining”

  ■The 2nd International Symposium on Steel Science (IS3-2009)    2009,Oct.21-24   <Japan, Kyoto>

    ◯Y.Todaka(ポスター), K.Morisako, M.Kumagai, Y.Matsumoto, M.Umemoto
      ”Hydrogen Embrittlement of Submicrocrystalline Ultra-Low Carbon Steel Produced by High-Pressure Torsion Straining”

  ■International Conference on Processing & Manufacturing of Advanced Materials (THERMEC'2009)    2009,Aug.25-29   <Germany, Berlin>

    ◯Y.Todaka(口頭), H.Nagai, Y.Takubo, M.Yoshii, M.Kumagai, M.Umemoto
      ”Mechanical Properties Of Submicrocrystalline If Steel Produced By HPT-Straining”

  ■15th International Conference on the Strength of Materials (ICSMA15)    2009,Aug.16-21   <Germany, Dresden>

    ◯Y.Todaka(口頭), H.Azuma, Y.Ohnishi, Umemoto
      ”High-functionalization of mechanical properties in Ti and Zr by SPD under high-pressure.”

  ■Asia Steel International Conference 2009    2009,May.24-27   <Korea, Busan>

    ◯K.Sugita(口頭), T.Maruyama, S.Yokoyama, Y.Todaka, M.Umemoto
      ”Transformation behavior and hardness of vanadium-microalloyed medium carbon steel after isothermal transformation”

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