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2010 Fiscal Year Annual Research Report

バルクナノメタルにおける力学特性の解明と変形理論構築

Planned Research

Project AreaBulk Nanostructured Metals -New Metallurgy of Novel Structural Materials
Project/Area Number 22102006
Research Category

Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

Research InstitutionTokyo Institute of Technology

Principal Investigator

加藤 雅治  東京工業大学, 大学院・総合理工学研究科, 教授 (50161120)

Co-Investigator(Kenkyū-buntansha) 尾中 晋  東京工業大学, 大学院・総合理工学研究科, 教授 (40194576)
友田 陽  茨城大学, 大学院・理工学研究科, 教授 (90007782)
ビノグラドフ アレクセイ  大阪市立大学, 大学院・工学研究科, 准教授 (10283102)
田中 將己  九州大学, 大学院・工学研究院, 助教 (40452809)
紙川 尚也  東北大学, 金属材料研究所, 助教 (30530894)
Keywords構造材料 / 結晶粒界 / 結晶欠陥 / 力学物性 / 物性実験
Research Abstract

研究代表者と分担者がそれぞれの研究を独自に行いつつ,相互の連携を密にとりながら力学特性に関する種々の系統的な基礎データを蓄積し,バルクナノメタルの変形機構の解明と変形理論の構築を目指した.
先ず,バルクナノメタル試料(Cu,Alなど)やその他の試料を用い,適切な熱処理も加えて,種々の方位差,粒径,転位密度の分布を持つ材料の引張変形挙動を系統的に明らかにした.また,変形した試料の内部組織と力学特性の関係を調べた.さらに,上記バルクナノメタル試料と超微細粒の低炭鋼を用いて破壊靭性試験を行い,延性,靭性の温度依存性を調べた.上記バルクナノメタル試料及び合金試料については,繰り返し変形試験(低サイクル試験)及び疲労試験(高サイクル試験)も行い,変形挙動と組織との関係を調べた.超微細粒材における,疲労試験時のせん断帯の形成や結晶粒の粗大化,さらには疲労軟化現象などについて考察した.上記バルクナノメタル試料の引張(圧縮)変形中,その場中性子散乱実験(Bragg回折と小角散乱)も試験温度を変化させて行った.一般に,バルクナノメタル試料では,結晶粒が超微細なため変形中の組織発達過程を追うことは困難であるが,中性子散乱実験という特長ある実験手法を用いることで,変形中の内部応力の発生,転位密度の変化などをin-situで明らかにできた.

  • Research Products

    (29 results)

All 2011 2010

All Journal Article (13 results) (of which Peer Reviewed: 13 results) Presentation (15 results) Book (1 results)

  • [Journal Article] Inverse Temperature Dependence of Activation Volume in Ultrafine-Grained Copper Processed by Accumulative Roll-Bonding2011

    • Author(s)
      T.Kunimine, T.Aragaki, T.Fujii, S.Onaka, M.Kato
    • Journal Title

      Journal of Materials Science

      Volume: (In press)

    • Peer Reviewed
  • [Journal Article] Effects of Si Addition on Mechanical Properties of Copper Severely Deformed by Accumulative Roll-Bonding2011

    • Author(s)
      T.Kunimine, T.Fujii, S.Onaka, N.Tsuji, M.Kato
    • Journal Title

      Journal of Materials Science

      Volume: (In press)

    • Peer Reviewed
  • [Journal Article] Low-Cycle Fatigue of Ultrafine-grained Aluminum at Low Temperatures2011

    • Author(s)
      Y.Nakanishi, T.Fujii, S.Onaka, M.Kato
    • Journal Title

      Materials Transactions

      Volume: (In press)

    • Peer Reviewed
  • [Journal Article] Effect of Ausforming on Nanobainite Steel2010

    • Author(s)
      W.Gong, Y.Tomota, M.S.Koo, Y.Adachi
    • Journal Title

      Scripta Materialia

      Volume: 63 Pages: 819-822

    • Peer Reviewed
  • [Journal Article] Tensile Behavior of a TRIP-Aided Ultra-fine Grained Steel Studied by Neutron Diffraction2010

    • Author(s)
      K.Asoo, Y.Tomota, S.Harjo, Okitsu
    • Journal Title

      ISIJ International

      Volume: 51 Pages: 145-150

    • Peer Reviewed
  • [Journal Article] Comparative Analysis of Inhomogeneous Plastic Flow in Bulk and Ribbon Metallic Glasses Monitored by Acoustic Emission2010

    • Author(s)
      A.Lazarev, A.Vinogradov, S.Hashimoto
    • Journal Title

      Journal of Alloys and Compounds

      Volume: 504 Pages: S60-S64

    • Peer Reviewed
  • [Journal Article] On the Shear Bands Velocity and Detectability of Acoustic Emission in Metallic Glasses2010

    • Author(s)
      A.Vinogradov
    • Journal Title

      Scripta Materialia

      Volume: 63 Pages: 89-92

    • Peer Reviewed
  • [Journal Article] Propagation of Shear Bands in Metallic Glasses and Transition from Serrated to Non-serrated Plastic Flow at Low Temperatures2010

    • Author(s)
      A.Vinogradov, A.Lazarev, D.V.Louzguine-Luzgin, Y.Yokoyama, S.Li, A.R.Yavari, A.Inoue
    • Journal Title

      Acta Materialia

      Volume: 58 Pages: 6736-6743

    • Peer Reviewed
  • [Journal Article] Characterization of Crack-tip Dislocations and Their Effects on Materials Fracture2010

    • Author(s)
      K.Higashida, M.Tanaka, S.Sadamatsu
    • Journal Title

      Materials Science Forum

      Volume: 654-656 Pages: 2307-2311

    • Peer Reviewed
  • [Journal Article] Crack Tip Dislocations Observed by Combining Scanning Transmission Electron Microscopy and Computed Tomography2010

    • Author(s)
      S.Sadamatsu, M.Tanaka, K.Higashida, K.Kaneko, M.Mitsuhara, S.Hata, M.Honda
    • Journal Title

      Advanced Materials Research

      Volume: 89-91 Pages: 473-478

    • Peer Reviewed
  • [Journal Article] High Pressure Torsion of Pure Ti : Effect of Pressure and Strain on Allotropy2010

    • Author(s)
      K.Edalati, Z.Horita, M.Tanaka, K.Higashida
    • Journal Title

      Advanced Materials Research

      Volume: 89-91 Pages: 171-176

    • Peer Reviewed
  • [Journal Article] 超強加工により作製されたバルクナノメタルの組織と機械的性質2010

    • Author(s)
      紙川尚也
    • Journal Title

      まてりあ

      Volume: 49 Pages: 280-284

    • Peer Reviewed
  • [Journal Article] Strengthening Mechanisms and Optimization of Structure and Properties in a Nanostructured IF Steel2010

    • Author(s)
      X.Huang, N.Kamikawa, N.Hansen
    • Journal Title

      Journal of Materials Science

      Volume: 45 Pages: 4761-4769

    • Peer Reviewed
  • [Presentation] Multifunctional ultrafine grained CuCr alloys2010

    • Author(s)
      A.Vinogradov
    • Organizer
      Int.Symp.on Giant Straining Process for Advanced Materials (GSAM 2010)
    • Place of Presentation
      Fukuoka, Japan(Invited Lecture)
    • Year and Date
      20101119-20101122
  • [Presentation] The Increase in Toughness at Low Temperatures by Severe Plastic Deformation2010

    • Author(s)
      K.Higashida, M.Tanaka, T.Shimokawa
    • Organizer
      Int.Symp.on Giant Straining Process for Advanced Materials (GSAM 2010)
    • Place of Presentation
      Fukuoka, Japan
    • Year and Date
      20101119-20101122
  • [Presentation] In Situ Neutron Scattering for Microstructural Control of Advanced Steels2010

    • Author(s)
      Y.Tomota
    • Organizer
      HANARO International Symposium
    • Place of Presentation
      Deajeon, Korea(Invited Lecture)
    • Year and Date
      20101101-20101102
  • [Presentation] ARB加工によるCu/Al積層材の強度と組織の変化2010

    • Author(s)
      山田拓也, 藤居俊之, 尾中晋, 加藤雅治
    • Organizer
      日本金属学会秋期講演大会
    • Place of Presentation
      北海道大学
    • Year and Date
      20100925-20100927
  • [Presentation] ECAP加工を施した純Cuの疲労挙動に及ぼす焼鈍の影響2010

    • Author(s)
      大久保智, 藤居俊之, 尾中晋, 加藤雅治
    • Organizer
      日本金属学会秋期講演大会
    • Place of Presentation
      北海道大学
    • Year and Date
      20100925-20100927
  • [Presentation] EBSD-Wilkinson法を用いた弾性歪分布測定によるFCC鋼の応力分配挙動解析2010

    • Author(s)
      小島真由美, 足立吉隆, 友田陽, 鈴木清一
    • Organizer
      日本鉄鋼協会秋季講演大会
    • Place of Presentation
      北海道大学
    • Year and Date
      20100925-20100927
  • [Presentation] 種々の粒径・粒界方位差を有する純アルミニウムの引張変形挙動2010

    • Author(s)
      廣地泰介、近藤由佳、紙川尚也、古原忠
    • Organizer
      2010年日本金属学会秋期大会
    • Place of Presentation
      北海道大学
    • Year and Date
      20100925-20100927
  • [Presentation] 超強加工された純アルミニウムの再結晶挙動に及ぼすひずみ量の影響2010

    • Author(s)
      近藤由佳、廣地泰介、紙川尚也、古原忠
    • Organizer
      2010年日本金属学会秋期大会
    • Place of Presentation
      北海道大学
    • Year and Date
      20100925-20100927
  • [Presentation] Crack Tip Dislocations Observed by Electron Tomography in Single Crystal Silicon2010

    • Author(s)
      M.Tanaka, K.Higashida, S.Sadamatsu, H.Nakamura
    • Organizer
      31st Riso International Symposium on Materials Science : Challenges in materials science and possibilities in 3D and 4D characterization techniques
    • Place of Presentation
      Roskilde, Denmark
    • Year and Date
      20100906-20100910
  • [Presentation] Characterization of Crack-tip Dislocations and Their Effects on Materials Fracture2010

    • Author(s)
      K.Higashida, M.Tanaka, S.Sadamatsu
    • Organizer
      The 7th Pacific Rim International Conference on Advanced Materials and Processing (PRICM7)
    • Place of Presentation
      Cairns, Australia
    • Year and Date
      20100802-20100806
  • [Presentation] Effect of Structural Relaxation on the Kinetics of Shear Banding in Metallic Glasses2010

    • Author(s)
      A.Vinogradov, R.Maass, D.Klaumunzer, A.Lazarev, F.Dalla Torre, J.F.Loffler
    • Organizer
      17th International Symposium on Metastable, Amorphous and Nanostructured Materials (ISMANAM 2010)
    • Place of Presentation
      Zurich, Switzerland
    • Year and Date
      20100704-20100710
  • [Presentation] Effect of Testing Temperature on Acoustic Emission in Bulk Metallic Glasses2010

    • Author(s)
      A.Vinogradov, R.Maass, D.Klaumunzer, A.Lazarev, F.Dalla Torre, J.F.Loffler
    • Organizer
      17th International Symposium on Metastable, Amorphous and Nanostructured Materials (ISMANAM 2010)
    • Place of Presentation
      Zurich, Switzerland
    • Year and Date
      20100704-20100710
  • [Presentation] Stored energy and annealing behavior of heavily deformed metals2010

    • Author(s)
      N.Kamikawa, X.Huang, Y.Kondo, T.Furuhara, N.Hansen
    • Organizer
      4th International Conference on Recrystallization and Grain Growth (ReX&GG IV)
    • Place of Presentation
      The University of Sheffield
    • Year and Date
      20100704-20100709
  • [Presentation] Role of Dislocations Emitted from Grain Boundaries on Plastic Deformation of Ultrafine-Grained Materials2010

    • Author(s)
      M.Kato
    • Organizer
      The 13th International Conference on Intergranular and Interphase Boundaries in Materials (iib2010)
    • Place of Presentation
      Mie, Japan(Invited Lecture)
    • Year and Date
      20100627-20100702
  • [Presentation] 巨大ひずみ加工材の材料組織定量解析2010

    • Author(s)
      井口将利、新垣優、内藤大幹、菅谷聡、堀田善次、鈴木裕士、友田陽
    • Organizer
      第18回茨城講演会(日本機械学会・精密工学会・茨城大学共催)
    • Place of Presentation
      茨城大学
    • Year and Date
      2010-08-27
  • [Book] "In situ Studies with Photons, Neutrons and Electron Scattering" edited by T.Kannengiesser, S.S.Babu, Y.Komizo and A.J.Ramirez "In situ Neutron Diffraction during Thermo-mechanically Controlled Process for Low Alloy Steels"2010

    • Author(s)
      Y.Tomota, P.G.Xu, E.C.Oliver, A.Paradowska
    • Total Pages
      25
    • Publisher
      Springer

URL: 

Published: 2012-07-19  

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