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Systematization of academic background in grain refinement strengthening of steel

Research Project

Project/Area Number 15H05768
Research Category

Grant-in-Aid for Scientific Research (S)

Allocation TypeSingle-year Grants
Research Field Structural/Functional materials
Research InstitutionKyushu University

Principal Investigator

Setsuo Takaki  九州大学, 鉄鋼リサーチセンター, 学術研究員 (90150490)

Co-Investigator(Kenkyū-buntansha) 宗藤 伸治  九州大学, 工学研究院, 教授 (20380587)
土山 聡宏  九州大学, 工学研究院, 教授 (40315106)
中田 伸生  東京工業大学, 物質理工学院, 准教授 (50380580)
赤間 大地  九州大学, 工学研究院, 特任助教 (80612118)
Project Period (FY) 2015-05-29 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥158,080,000 (Direct Cost: ¥121,600,000、Indirect Cost: ¥36,480,000)
Fiscal Year 2019: ¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000)
Fiscal Year 2018: ¥16,380,000 (Direct Cost: ¥12,600,000、Indirect Cost: ¥3,780,000)
Fiscal Year 2017: ¥16,380,000 (Direct Cost: ¥12,600,000、Indirect Cost: ¥3,780,000)
Fiscal Year 2016: ¥23,920,000 (Direct Cost: ¥18,400,000、Indirect Cost: ¥5,520,000)
Fiscal Year 2015: ¥84,760,000 (Direct Cost: ¥65,200,000、Indirect Cost: ¥19,560,000)
Keywordsフェライト鋼 / 結晶粒径 / 結晶粒微細化強化 / 降伏応力 / Hall-Petchの関係 / 粒界偏析 / 合金元素 / 強化機構 / 降伏強度 / 臨界粒界応力 / 摩擦力 / 時効処理 / 侵入型元素 / 置換型元素 / 構造・機能材料
Outline of Final Research Achievements

Yielding of well-annealed poly crystalline iron occurs by the dislocation emission from grain boundary and the grain refinement strengthening coefficient increases with an increase of the shear stress τ* which is required for the dislocation emission from grain boundary. τ* is small value in pure iron but changeable depending on the kind and amount of alloying elements which have segregated at grain boundary. The results of this study proved that C, N, Ni, Si, Mn and Al make τ* increase although the degree of effect is different, while Cr does not give so large effect to τ*.

Academic Significance and Societal Importance of the Research Achievements

鉄鋼は現代文明を支える基盤材料であり、省資源・省エネルギーの観点から更なる高強度化が求められている。ほとんどの実用鋼は多結晶体であり、結晶粒微細化強化は最重要の強化手段といっても過言ではないが、降伏挙動に及ぼす合金元素の影響については不明な点も多く残されている。本研究成果は、新たな材料や組織制御法を開発するうえで重要な設計指針を与えるものであり、学術面のみならず社会的にも高く評価される。

Assessment Rating
Verification Result (Rating)

A+

Assessment Rating
Result (Rating)

A: Progress in the research is steadily towards the initial goal. Expected research results are expected.

Report

(11 results)
  • 2020 Research Progress Assessment (Verification Result) ( PDF )
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report   Abstract(Research Progress Assessment) ( PDF )   Research Progress Assessment (Result) ( PDF )
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • 2015 Abstract ( PDF )   Comments on the Screening Results ( PDF )   Annual Research Report
  • Research Products

    (101 results)

All 2020 2019 2018 2017 2016 2015 Other

All Journal Article (39 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 39 results,  Open Access: 14 results,  Acknowledgement Compliant: 2 results) Presentation (60 results) (of which Int'l Joint Research: 31 results,  Invited: 12 results) Remarks (1 results) Funded Workshop (1 results)

  • [Journal Article] Effect of dislocation distribution on the yield stress in ferritic steel under identical dislocation density conditions2020

    • Author(s)
      Y.Tanaka, T.Masumura, T.Tsuchiyama and S.Takaki
    • Journal Title

      Scripta Materialia

      Volume: 177 Pages: 176-180

    • DOI

      10.1016/j.scriptamat.2019.10.018

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Empirical interatomic potential for Fe-N binary system based on Finnis-Sinclair potential2020

    • Author(s)
      K.Hyodo, S.Munetoh, T.Tsuchiyama and S.Takaki
    • Journal Title

      Computational Materials Science

      Volume: 174 Pages: 109500-109500

    • DOI

      10.1016/j.commatsci.2019.109500

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dislocation Characterization by the Direct-fitting/modified Williamson-Hall (DF/mWH) Method in Ultra-low Carbon Martensitic Steel2020

    • Author(s)
      増村拓朗, 高木節雄, 土山聡宏
    • Journal Title

      Tetsu-to-Hagane

      Volume: 106 Issue: 3 Pages: 183-186

    • DOI

      10.2355/tetsutohagane.TETSU-2019-053

    • NAID

      130007803601

    • ISSN
      0021-1575, 1883-2954
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Nonadditive strengthening functions for cold-worked cubic metals: Experiments and constitutive modeling2020

    • Author(s)
      F.Jiang, S.Takaki, T.Masumura, R.Uemori, H.Zhang and T.Tsuchiyama
    • Journal Title

      International Journal of Plasticity

      Volume: 129 Pages: 102700-102700

    • DOI

      10.1016/j.ijplas.2020.102700

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Modified Williamson-Hall法での解析に必要なパラメーターCh00ならびにqの提案2020

    • Author(s)
      増村拓朗, 高木節雄, 土山聡宏
    • Journal Title

      材料

      Volume: 69

    • NAID

      130007833300

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 単結晶鉄におけるヤング率と弾性スティフネス2020

    • Author(s)
      高木節雄, 増村拓朗, 土山聡宏
    • Journal Title

      鉄と鋼

      Volume: 106

    • NAID

      130007892963

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Modified Williamson-Hall法における解析精度向上手法の提案2020

    • Author(s)
      高木節雄, 増村拓朗, 土山聡宏
    • Journal Title

      材料

      Volume: 69

    • NAID

      130007906064

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 理想多結晶金属における弾性定数2020

    • Author(s)
      高木節雄, 増村拓朗, 土山聡宏
    • Journal Title

      材料

      Volume: 69

    • NAID

      130007906055

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Estimation of Young’s Modulus in Poly-Crystalline Metals Based on the Direct Averaging Method2019

    • Author(s)
      高木節雄, 増村拓朗, 土山聡宏
    • Journal Title

      Journal of the Society of Materials Science, Japan

      Volume: 68 Issue: 12 Pages: 917-922

    • DOI

      10.2472/jsms.68.917

    • NAID

      130007769387

    • ISSN
      0514-5163, 1880-7488
    • Year and Date
      2019-12-15
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of Substitutional Element Addition on Hall-Petch Relationship in Interstitial Free Ferritic Steels2019

    • Author(s)
      F.Jiang, T.Masumura, T.Tsuchiyama and S.Takaki
    • Journal Title

      ISIJ International

      Volume: 59 Issue: 10 Pages: 1929-1931

    • DOI

      10.2355/isijinternational.ISIJINT-2019-100

    • NAID

      130007729944

    • ISSN
      0915-1559, 1347-5460
    • Year and Date
      2019-10-15
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Dislocation Characterization by the Direct-fitting/modified Williamson–Hall (DF/mWH) Method in Cold Worked Ferritic Steel2019

    • Author(s)
      Takaki Setsuo、Masumura Takuro、Tsuchiyama Toshihiro
    • Journal Title

      ISIJ International

      Volume: 59 Issue: 3 Pages: 567-572

    • DOI

      10.2355/isijinternational.ISIJINT-2018-623

    • NAID

      130007616378

    • ISSN
      0915-1559, 1347-5460
    • Year and Date
      2019-03-15
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Correlation in the Parameters Obtained by Direct-Fitting Method and Modified Williamson-Hall Method for Cold Worked Iron2019

    • Author(s)
      高木節雄, 増村拓朗, 土山聡宏
    • Journal Title

      Tetsu-to-Hagane

      Volume: 105 Issue: 6 Pages: 648-654

    • DOI

      10.2355/tetsutohagane.TETSU-2018-167

    • NAID

      130007655956

    • ISSN
      0021-1575, 1883-2954
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of grain boundary segregation of carbon on critical grain boundary strength of ferritic steel2019

    • Author(s)
      S.Araki, K.Mashima, T.Masumura, T.Tsuchiyama, S.Takaki, T.Ohmura
    • Journal Title

      Scripta Materialia

      Volume: 169 Pages: 38-41

    • DOI

      10.1016/j.scriptamat.2019.05.001

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Estimation of Elastic Stiffness Ratio <i>c</i><sub>12</sub>/<i>c</i><sub>44</sub> and Anisotropy Parameter <i>A</i><sub>i</sub> in the Steels with Bcc Structure2019

    • Author(s)
      高木節雄, 増村拓朗, 土山聡宏
    • Journal Title

      Tetsu-to-Hagane

      Volume: 105 Issue: 9 Pages: 935-937

    • DOI

      10.2355/tetsutohagane.TETSU-2019-009

    • NAID

      130007697556

    • ISSN
      0021-1575, 1883-2954
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A new diffraction line profile breadth analysis approach for evaluating plastic lattice strain anisotropy in cold-worked nickel under various strain paths2019

    • Author(s)
      Jiang Fulin、Masumura Takuro、Hirata Kentaro、Tsuchiyama Toshihiro、Takaki Setsuo
    • Journal Title

      International Journal of Plasticity

      Volume: 112 Pages: 89-107

    • DOI

      10.1016/j.ijplas.2018.08.006

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Proposal of Simplified Modified Williamson-Hall Equation2018

    • Author(s)
      Takaki Setsuo、Masumura Takuro、Tsuchiyama Toshihiro
    • Journal Title

      ISIJ International

      Volume: 58 Issue: 12 Pages: 2354-2356

    • DOI

      10.2355/isijinternational.ISIJINT-2018-517

    • NAID

      130007534089

    • ISSN
      0915-1559, 1347-5460
    • Year and Date
      2018-12-15
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of Low Temperature Aging on Hall-Petch Coefficient in Ferritic Steels Containing a Small Amount of Carbon and Nitrogen2018

    • Author(s)
      Araki Satoshi、Fujii Kohei、Akama Daichi、Tsuchiyama Toshihiro、Takaki Setsuo、Ohmura Takahito、Takahashi Jun
    • Journal Title

      ISIJ International

      Volume: 58 Issue: 10 Pages: 1920-1926

    • DOI

      10.2355/isijinternational.ISIJINT-2018-130

    • NAID

      130007498218

    • ISSN
      0915-1559, 1347-5460
    • Year and Date
      2018-10-15
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of Grain Size on the Yield Stress of Cold Worked Iron2018

    • Author(s)
      Tanaka Yuki、Takaki Setsuo、Tsuchiyama Toshihiro、Uemori Ryuji
    • Journal Title

      ISIJ International

      Volume: 58 Issue: 10 Pages: 1927-1933

    • DOI

      10.2355/isijinternational.ISIJINT-2018-371

    • NAID

      130007498202

    • ISSN
      0915-1559, 1347-5460
    • Year and Date
      2018-10-15
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Relation between Diffraction Young&apos;s Modulus Ratio and Elastic Anisotropy in Metals2018

    • Author(s)
      TAKAKI Setsuo、MASUMURA Takuro、JIANG Fulin、TSUCHIYAMA Toshihiro
    • Journal Title

      Journal of the Society of Materials Science, Japan

      Volume: 67 Issue: 9 Pages: 855-860

    • DOI

      10.2472/jsms.67.860

    • NAID

      130007485148

    • ISSN
      0514-5163, 1880-7488
    • Year and Date
      2018-09-15
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of Instrumental Correction on X-ray Line Profile Analysis in Cold Rolled Ferritic Steel2018

    • Author(s)
      Takaki Setsuo、Masumura Takuro、Jiang Fulin、Tsuchiyama Toshihiro
    • Journal Title

      ISIJ International

      Volume: 58 Issue: 6 Pages: 1181-1183

    • DOI

      10.2355/isijinternational.ISIJINT-2018-021

    • NAID

      130007397758

    • ISSN
      0915-1559, 1347-5460
    • Year and Date
      2018-06-15
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Correction of Elastic Anisotropy in Williamson-Hall Plots by Diffraction Young’s Modulus and Direct Fitting Method2018

    • Author(s)
      S.Takaki, F.Jiang, T.Masumura and T.Tsuchiyama
    • Journal Title

      ISIJ International

      Volume: 58 Issue: 4 Pages: 769-775

    • DOI

      10.2355/isijinternational.ISIJINT-2017-642

    • NAID

      130006708222

    • ISSN
      0915-1559, 1347-5460
    • Related Report
      2018 Annual Research Report 2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of Grain Size on the Yield Stress of Cold Worked Iron2018

    • Author(s)
      田中友基, 高木節雄, 土山聡宏, 植森龍治
    • Journal Title

      Tetsu-to-Hagane

      Volume: 104 Issue: 5 Pages: 284-291

    • DOI

      10.2355/tetsutohagane.TETSU-2017-091

    • NAID

      130006728771

    • ISSN
      0021-1575, 1883-2954
    • Related Report
      2018 Annual Research Report 2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Evaluation of Dislocation Density in Cold Worked Low Carbon Ferritic Steel2018

    • Author(s)
      Takaki Setsuo、Masumura Takuro、Jiang Fulin、Tsuchiyama Toshihiro
    • Journal Title

      Tetsu-to-Hagane

      Volume: 104 Issue: 11 Pages: 683-688

    • DOI

      10.2355/tetsutohagane.TETSU-2018-054

    • NAID

      130007501836

    • ISSN
      0021-1575, 1883-2954
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Discussion about Procedure for Determining Parameter α in Modified Williamson-Hall Method2018

    • Author(s)
      Masumura Takuro、Takaki Setsuo、Jiang Fulin、Tsuchiyama Toshihiro
    • Journal Title

      Tetsu-to-Hagane

      Volume: 104 Issue: 11 Pages: 717-719

    • DOI

      10.2355/tetsutohagane.TETSU-2018-095

    • NAID

      130007501831

    • ISSN
      0021-1575, 1883-2954
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Theoretical Discussion of Dislocation Strengthening in Cold Rolled Iron2018

    • Author(s)
      高木節雄, 土山聡宏
    • Journal Title

      Tetsu-to-Hagane

      Volume: 104 Issue: 2 Pages: 117-120

    • DOI

      10.2355/tetsutohagane.TETSU-2017-053

    • NAID

      130006325933

    • ISSN
      0021-1575, 1883-2954
    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of the Surface Layer Strained by Mechanical Grinding on X-ray Diffraction Analysis2018

    • Author(s)
      F.Jiang, K.Hirata, T.Masumura, T.Tsuchiyama and S.Takaki
    • Journal Title

      ISIJ International

      Volume: 58 Issue: 2 Pages: 376-378

    • DOI

      10.2355/isijinternational.ISIJINT-2017-578

    • NAID

      130006362663

    • ISSN
      0915-1559, 1347-5460
    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 回折ヤング率によるWilliamson-Hallプロットの補正2018

    • Author(s)
      高木節雄, 赤間大地, Jiang Fulin, 土山聡宏
    • Journal Title

      材料

      Volume: 67 Pages: 383-388

    • NAID

      130006515957

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effectt of instrumental correction on X-ray line profile analysis in cold rolled ferritic steel2018

    • Author(s)
      S.Takaki, T.Masumura, F.Jiang and T.Tsuchiyama
    • Journal Title

      ISIJ International

      Volume: 58

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 金属の弾性異方性と回折ヤング率比の関係2018

    • Author(s)
      高木節雄, 増村拓朗, Fulin Jiang, 土山聡宏
    • Journal Title

      材料

      Volume: 未定

    • NAID

      130007485148

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] X線回折法を用いた純鉄加工材の転位密度評価2017

    • Author(s)
      赤間大地, 土山聡宏, 高木節雄
    • Journal Title

      材料

      Volume: 66 Pages: 522-527

    • NAID

      130005815101

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of Low Temperature Aging on Hall-Petch Coefficient in Ferritic Steels Containing a Small Amount of Carbon and Nitrogen2017

    • Author(s)
      荒木理, 藤井浩平, 赤間大地, 土山聡宏, 高木節雄, 大村孝仁, 高橋淳
    • Journal Title

      Tetsu-to-Hagane

      Volume: 103 Issue: 8 Pages: 491-497

    • DOI

      10.2355/tetsutohagane.TETSU-2017-008

    • NAID

      130005874186

    • ISSN
      0021-1575, 1883-2954
    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Quantitative Evaluation of Auto-Tempering During Quenching2017

    • Author(s)
      高木節雄, 赤間大地, 土山聡宏
    • Journal Title

      NETSUSHORI

      Volume: 56 Issue: 6 Pages: 340-344

    • DOI

      10.14940/netsushori.56.340

    • NAID

      130005289413

    • ISSN
      0288-0490, 2188-4064
    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hydrogen-induced increase in phase stability in metastable austenite of various grain sizes under strain2017

    • Author(s)
      Arnaud MACADRE, Toshihiro TSUCHIYAMA, Setsuo TAKAKI
    • Journal Title

      Journal of Materials Science

      Volume: 52 Issue: 6 Pages: 3419-3428

    • DOI

      10.1007/s10853-016-0630-0

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 微量炭素・窒素を添加したフェライト鋼のHall-Petch係数に及ぼす低温時効処理の影響2017

    • Author(s)
      荒木理 藤井浩平 赤間大地 土山聡宏 高木節雄 大村孝仁 高橋淳
    • Journal Title

      鉄と鋼

      Volume: 103

    • NAID

      130005874186

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Change in Dislocation Characteristics with Cold Working in Ultralow-carbon Martensitic Steel2016

    • Author(s)
      Daichi AKAMA, Toshihiro TSUCHIYAMA, Setsuo TAKAKI
    • Journal Title

      ISIJ International

      Volume: 56 Issue: 9 Pages: 1675-1680

    • DOI

      10.2355/isijinternational.ISIJINT-2016-140

    • NAID

      130005264625

    • ISSN
      0915-1559, 1347-5460
    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of pre-deformation temperature on yield strength of IF-steel2016

    • Author(s)
      Yuki TANAKA, Nobuo NAKADA, Toshihiro TSUCHIYAMA, and Setsuo TAKAKI
    • Journal Title

      The Ninth Pacific Rim International Conference on Advanced Materials and Processing(PRICM9)

      Volume: -

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 透過EBSD法を用いた鉄の加工組織の解析2016

    • Author(s)
      田中友基, 土山聡宏, 高木節雄
    • Journal Title

      熱処理

      Volume: 56 Pages: 327-328

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Difference in age hardening behavior between carbon and nitrogen bearing ferritic steels2015

    • Author(s)
      Araki, S., Akama, D., Tsuchiyama, T. and Takaki, S.
    • Journal Title

      Proceeding of Asia Steel International Conference 2015

      Volume: 1 Pages: 226-227

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Effect of grain size and solute hydrogen on the tensile properties and fracture behaviour of an austenitic steel2015

    • Author(s)
      Macadre, A., Nakada, N., Tsuchiyama, T. and Takaki, S.
    • Journal Title

      Proceeding of Asia Steel International Conference 2015

      Volume: 1 Pages: 542-543

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 分子動力学法によるBCC鉄中での刃状転位と炭素原子の相互作用の評価2019

    • Author(s)
      大岩根駿、兵頭克敏、宗藤伸治、土山聡宏、高木節雄
    • Organizer
      2019年度 合同学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Evaluation of Pinning Force on Edge Dislocation due to C and N Atoms in Iron by Molecular Dynamics Simulation2019

    • Author(s)
      Katsutoshi Hyodo, Shinji Munetoh, Toshihiro Tsuchiyama, Setsuo Takaki
    • Organizer
      MSMF9
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Evaluation of Hall-Petch Coefficient with Critical Grain Boundary Shear Stress Measured by Nanoindentation in Ferritic Steel2019

    • Author(s)
      Toshihiro Tsuchiyama, Katsuya Mashima, Satoshi Araki, Setsuo Takaki, Takahito Ohmura
    • Organizer
      MSMF9
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Estimation of the Parameter A in Modified Williamson-Hall Equation for Martensitic Steel2019

    • Author(s)
      Takuro Masumura, Setsuo Takaki, Toshihiro Tsuchiyama
    • Organizer
      MSMF9
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] FSポテンシャルに基づいたFe-N2元系ポテンシャル2019

    • Author(s)
      兵頭克敏、宗藤伸治、土山聡宏、高木節雄
    • Organizer
      日本鉄鋼協会第178回秋季講演大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Direct-fitting/modified Williamson-Hall(DF/mWH)法を用いた各種鉄鋼材料の転位密度評価法2019

    • Author(s)
      増村拓朗、高木節雄、土山聡宏
    • Organizer
      日本鉄鋼協会第178回秋季講演大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 分子動力学法を用いたBCC鉄中での炭素原子による刃状転位のピン止め力の評価2019

    • Author(s)
      大岩根駿、兵頭克敏、宗藤伸治、土山聡宏、高木節雄
    • Organizer
      日本鉄鋼協会第178回秋季講演大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 分子動力学法によるBCC鉄非対称傾角粒界での転位パイルアップシミュレーション2019

    • Author(s)
      兵頭克敏 宗藤伸治 土山聡宏 高木節雄
    • Organizer
      日本鉄鋼協会第177回春季講演大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 高窒素オーステナイト鋼における加工硬化と転位蓄積挙動2019

    • Author(s)
      増村拓朗 瀨戸雄樹 土山聡宏 高木節雄 木村謙
    • Organizer
      日本鉄鋼協会第177回春季講演大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Direct fitting / modified Williamson-Hall法による転位解析2018

    • Author(s)
      高木節雄 増村拓朗 土山聡宏
    • Organizer
      日本鉄鋼協会第176回秋季講演大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Direct Fitting法を用いたオーステナイト鋼の転位密度および加工硬化挙動の評価2018

    • Author(s)
      増村拓朗 高木節雄 土山聡宏
    • Organizer
      日本鉄鋼協会第176回秋季講演大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 分子動力学法を用いたFCC 鉄中での窒素-刃状転位間相互作用の解析2018

    • Author(s)
      兵頭克敏 永山享平 宗藤伸治 土山聡宏 高木節雄
    • Organizer
      日本鉄鋼協会第176回秋季講演大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] フェライト鋼の降伏挙動に及ぼす粒内・粒界偏析炭素の影響2018

    • Author(s)
      土山聡宏
    • Organizer
      日本鉄鋼協会第176回秋季講演大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Evaluation of work hardening behavior in austenitic steel by direct fitting / modified Williamson-Hall method2018

    • Author(s)
      Takuro Masumura, Fulin Jiang, Toshihiro Tsuchiyama, Setsuo Takaki
    • Organizer
      THERMEC'2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Effect of grain size on the dislocation density of cold worked ferritic steels2018

    • Author(s)
      Setsuo Takaki, Yuki Tanaka, Toshihiro Tsuchiyama, Ryuji Uemori
    • Organizer
      THERMEC'2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Analysis of interaction between C/N atom and moving edge dislocation in iron by Molecular Dynamics2018

    • Author(s)
      Katsutoshi Hyodo, Satoshi Araki, Shinji Munetoh, Toshihiro Tsuchiyama, Setsuo Takaki
    • Organizer
      THERMEC'2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of grain size on the yielding and post-tield deformation in ferritic steel2018

    • Author(s)
      Setsuo Takaki
    • Organizer
      ICAS2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Pinning Force on Edge Dislocation Due to C and N Atoms in Iron Analyzed by Molecular Dynamics Simulation2018

    • Author(s)
      Katsutoshi Hyodo, Satoshi Araki, Shinji Munetoh, Toshihiro Tsuchiyama, Setsuo Takaki
    • Organizer
      ICAS2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Discussion on Hall-Petch coefficient of ferritic steel based on experimentally measured critical grain boundary shear stress2018

    • Author(s)
      Toshihiro Tsuchiyama, Katsuya Mashima, Satoshi Araki, Setsuo Takaki, Takahito Ohmura
    • Organizer
      ICAS2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Effect of carbon and grain size on the yield stress of cold worked ferritic steels2018

    • Author(s)
      Setsuo Takaki
    • Organizer
      CAMS2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Direct fitting/Modified Williamson-Hall法によるフェライト鋼の転位密度評価2018

    • Author(s)
      高木節雄 増村拓朗 Fulin Jiang 土山聡宏
    • Organizer
      日本鉄鋼協会第175回春季講演大会
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] 回折ヤング率によるWilliamson-Hall plotsの補正ならびにDirect fitting法の提案2017

    • Author(s)
      高木節雄
    • Organizer
      日本鉄鋼協会第173回春季講演大会
    • Place of Presentation
      首都大学東京南大沢キャンパス
    • Year and Date
      2017-03-15
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] Role of silicon addition in grain refinement strengthening of ferritic steel2017

    • Author(s)
      Fulin JIANG 赤間大地 土山聡宏 高木節雄
    • Organizer
      日本鉄鋼協会第173回春季講演大会
    • Place of Presentation
      首都大学東京南大沢キャンパス
    • Year and Date
      2017-03-15
    • Related Report
      2016 Annual Research Report
  • [Presentation] フェライト鋼における転位運動に及ぼす炭素と窒素の影響の相異2017

    • Author(s)
      兵頭克敏 荒木理 宗藤伸治 土山聡宏 高木節雄
    • Organizer
      第83回熱処理技術協会講演大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 分子動力学法を用いた鉄中での炭素・窒素-刃状転位間相互作用の解析2017

    • Author(s)
      兵頭克敏 荒木理 宗藤伸治 土山聡宏 高木節雄
    • Organizer
      平成29年度 合同学術講演大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] IF 鋼の転位組織および降伏強度に及ぼす前加工温度の影響2017

    • Author(s)
      田中友基 土山聡宏 高木節雄
    • Organizer
      日本鉄鋼協会第174回秋季講演大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 分子動力学法を用いたBCC鉄中での炭素・窒素-刃状転位間相互作用の解析2017

    • Author(s)
      兵頭克敏 荒木理 宗藤伸治 土山聡宏 高木節雄
    • Organizer
      日本鉄鋼協会第174回秋季講演大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 焼鈍したフェライト鋼の可動転位密度と時効処理によるその変化2017

    • Author(s)
      荒木理 土山聡宏 高木節雄 大村孝仁
    • Organizer
      日本鉄鋼協会第174回秋季講演大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Correlation between grain boundary segregation and Hall-Petch coefficient in Fe-Si steels2017

    • Author(s)
      F. L. Jiang, K. Hirata, T. Tsuchiyama and S. Takaki
    • Organizer
      日本鉄鋼協会第174回秋季講演大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 回折ヤング率によるWilliamson-Hallプロットの補正方法の検討2017

    • Author(s)
      高木節雄, 増村拓朗, 土山聡宏
    • Organizer
      日本鉄鋼協会第174回秋季講演大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 微量炭素を含有するフェライト鋼の時効処理に伴う粒界強度の変化2017

    • Author(s)
      真島克弥、荒木理、 土山聡宏, 高木節雄、大村孝仁
    • Organizer
      日本鉄鋼協会第174回秋季講演大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Fe-3mass%Siフェライト鋼の降伏強度に及ぼす焼鈍時間の影響2017

    • Author(s)
      平田健太郎 F.l.Jiang 土山聡宏 高木節雄
    • Organizer
      日本鉄鋼協会第174回秋季講演大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Direct correction of the elastic anisotropy in Williamson-Hall plots for cold worked metals2017

    • Author(s)
      Fulin Jiang, Setsuo Takaki, Daichi Akama, Toshihiro Tsuchiyama
    • Organizer
      EUROMAT2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Application of direct fitting method to the modified Williamson-Hall method2017

    • Author(s)
      Setsuo Takaki, Fu-lin Jang, Daichi Akama, Toshihiro Tsuchiyama
    • Organizer
      EUROMAT2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of silicon on the Hall-Petch relation in ferritic iron2017

    • Author(s)
      Kentaro Hirata, Fu-lin Jang, Setsuo Takaki, Daichi Akama, Toshihiro Tsuchiyama
    • Organizer
      EUROMAT2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Interaction between C/N atom and edge dislocation in bcc iron analyzed by molecular dynamics simulation2017

    • Author(s)
      Katsutoshi Hyodo, Satoshi Araki, Shinji Munetoh, Toshihiro Tsuchiyama, Setsuo Takaki
    • Organizer
      ISSS2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Yielding mechanism of polucrystalline iron2016

    • Author(s)
      Setsuo Takaki
    • Organizer
      CAMS2016
    • Place of Presentation
      Swinburne University of Technology
    • Year and Date
      2016-12-06
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] The effect of dislocation characteristics on yielding behavior in ultra-low carbon Fe-Ni martensite2016

    • Author(s)
      Daichi Akama, Toshihiro Tsuchiyama, Setsuo Takaki
    • Organizer
      CAMS2016
    • Place of Presentation
      Swinburne University of Technology
    • Year and Date
      2016-12-06
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Difference in age hardening behavior between carbon and nitrogen ferritic steel2016

    • Author(s)
      Satoshi Araki, Daichi Akama, Toshihiro Tsuchiyama, Setsuo Takaki
    • Organizer
      CAMS2016
    • Place of Presentation
      Swinburne University of Technology
    • Year and Date
      2016-12-06
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 鉄の飽和転位密度の見積もり2016

    • Author(s)
      高木節雄 赤間大地 土山聡宏
    • Organizer
      日本鉄鋼協会第172回秋季講演大会
    • Place of Presentation
      大阪大学豊中キャンパス
    • Year and Date
      2016-09-21
    • Related Report
      2016 Annual Research Report
  • [Presentation] 転位セル組織を有する鉄の強化機構2016

    • Author(s)
      高木節雄 赤間大地 土山聡宏
    • Organizer
      日本鉄鋼協会第172回秋季講演大会
    • Place of Presentation
      大阪大学豊中キャンパス
    • Year and Date
      2016-09-21
    • Related Report
      2016 Annual Research Report
  • [Presentation] 鉄の結晶粒微細化強化と転位強化の関係2016

    • Author(s)
      高木節雄
    • Organizer
      日本鉄鋼協会第172回秋季講演大会
    • Place of Presentation
      大阪大学豊中キャンパス
    • Year and Date
      2016-09-21
    • Related Report
      2016 Annual Research Report
  • [Presentation] X線ラインプロファイル解析による純鉄冷間加工材の転位キャラクター評価2016

    • Author(s)
      赤間大地、土山聡宏、高木節雄
    • Organizer
      日本鉄鋼協会第172回秋季講演大会
    • Place of Presentation
      大阪大学豊中キャンパス
    • Year and Date
      2016-09-21
    • Related Report
      2016 Annual Research Report
  • [Presentation] Effect of pre-deformation temperature on yield strength of IF-steel2016

    • Author(s)
      Yuki Tanaka, Nobuo Nakada, Toshihiro Tsuchiyama, Setsuo Takaki
    • Organizer
      PRICM9
    • Place of Presentation
      ICC Kyoto
    • Year and Date
      2016-08-01
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Dislocation density of cold-rolled Fe-Ni martensitic Steel measured by X-ray line profile analysis2016

    • Author(s)
      Daichi Akama, Toshihiro Tsuchiyama, Setsuo Takaki
    • Organizer
      PRICM9
    • Place of Presentation
      ICC Kyoto
    • Year and Date
      2016-08-01
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of Grain Size on the Dislocation Introduction in Iron2016

    • Author(s)
      Setsuo Takaki
    • Organizer
      8th Korea-Japan Berkeley Symposium
    • Place of Presentation
      青森県弘前市
    • Year and Date
      2016-07-17
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Mechanism on the appearance of spike-yielding in ultra-low carbon steel2016

    • Author(s)
      Satoshi Araki, Daichi Akama, Toshihiro Tsuchiyama, Setsuo Takaki
    • Organizer
      MSMF8
    • Place of Presentation
      Brno university of technology
    • Year and Date
      2016-06-27
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of Grain Size on the Dislocation Introduction in Iron2016

    • Author(s)
      Setsuo Takaki, Yuki Tanaka, Daichi Akama, Toshihiro Tsuchiyama
    • Organizer
      MSMF8
    • Place of Presentation
      Brno university of technology
    • Year and Date
      2016-06-27
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Solid solution strengthening by Ni in ultra-low carbon martensitic steel2016

    • Author(s)
      Daichi Akama. Toshihiro Tsuchiyama, Setsuo Takaki
    • Organizer
      MSMF8
    • Place of Presentation
      Brno university of technology
    • Year and Date
      2016-06-27
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 微量炭素を含有するフェライト鋼の時効処理に伴う粒内硬さの変化2016

    • Author(s)
      真島克弥 赤間大地 土山聡宏 高木節雄
    • Organizer
      平成28年度合同学術講演会大会
    • Place of Presentation
      九州大学筑紫キャンパス
    • Year and Date
      2016-06-11
    • Related Report
      2016 Annual Research Report
  • [Presentation] Grain size dependence on the yielding behavior of iron2016

    • Author(s)
      Setsuo Takaki
    • Organizer
      THERMEC' 2016
    • Place of Presentation
      Messe Congress Graz
    • Year and Date
      2016-05-29
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Evolution of plastic zone size at a crack tip with ultra-fine grains in metastable austenite2016

    • Author(s)
      Arnaud Macadre, Toshihiro Tsuchiyama, Setsuo Takaki
    • Organizer
      THERMEC' 2016
    • Place of Presentation
      Messe Congress Graz
    • Year and Date
      2016-05-29
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] フェライト鋼のHall-Petch係数におよぼす置換型元素の影響2016

    • Author(s)
      赤間大地、中田伸生、土山聡宏、宗藤伸治、高木節雄、竹田健悟、藤井浩平、荒木理、藤原勝、弘中明
    • Organizer
      日本鉄鋼協会 第171回春季講演大会
    • Place of Presentation
      東京理科大
    • Year and Date
      2016-03-23
    • Related Report
      2015 Annual Research Report
  • [Presentation] フェライト鋼における上降伏点の発現機構2016

    • Author(s)
      荒木理、赤間大地、土山聡宏、高木節雄
    • Organizer
      日本鉄鋼協会 第171回春季講演大会
    • Place of Presentation
      東京理科大
    • Year and Date
      2016-03-23
    • Related Report
      2015 Annual Research Report
  • [Presentation] Effect of grain size on the work hardening of ferritic iron2015

    • Author(s)
      Setsuo TAKAKI, Yuki TANAKA, Daichi AKAMA, Nobuo NAKADA, Toshihiro TSUCHIYAMA
    • Organizer
      International Conference on Advanced Material
    • Place of Presentation
      ICC,Jeju
    • Year and Date
      2015-10-25
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Differnce in age hardening behavior between carbon and nitrogen bearing ferritic steels2015

    • Author(s)
      Satoshi Araki, Daichi Akama, Toshihiro Tsuchiyama, Setsuo Takaki
    • Organizer
      Asia Steel 2015
    • Place of Presentation
      パシフィコ横浜
    • Year and Date
      2015-10-05
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of grain size on the yielding behavior of polycrystalline ferritic steel2015

    • Author(s)
      Setsuo Takaki,Toshihiro Tsuchiyama, Nobuo Nakada , Daichi Akama, Yuki Tanaka
    • Organizer
      Asia Steel 2015
    • Place of Presentation
      パシフィコ横浜
    • Year and Date
      2015-10-05
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Effect of grain size and solute hydrogen on the tensile properties and fracture behavior of an austenitic steel2015

    • Author(s)
      A. Macadre, N. Nakada, T. Tsuchiyama, S. Takaki
    • Organizer
      Asia Steel 2015
    • Place of Presentation
      パシフィコ横浜
    • Year and Date
      2015-10-05
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Improvement of resistance to hydrogen by ultra-grain refinement in a metastable austenitic steel2015

    • Author(s)
      A. Macadre, N. Nakada, T. Tsuchiyama, S. Takaki
    • Organizer
      European Congress and Exhibition on advanced materials and processes
    • Place of Presentation
      Warsaw University
    • Year and Date
      2015-09-20
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of low temperature aging on Hall-Petch relationship in interstitiallyalloyed ferritic steel2015

    • Author(s)
      T. Tsuchiyama, K. Fujii, S. Araki, S. Takaki, J. Takahashi, K. Ushioda
    • Organizer
      17th International Conference on the Strength of Materials
    • Place of Presentation
      Brno Convention and Exhibition Centre
    • Year and Date
      2015-08-09
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Remarks] 九州大学大学院工学研究院材料工学部門構造材料工学研究室[土山研究室]

    • URL

      https://tsuchiyama.zaiko.kyushu-u.ac.jp/

    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
  • [Funded Workshop] International symposium on grain size matters in steel2018

    • Related Report
      2017 Annual Research Report

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Published: 2015-06-03   Modified: 2023-10-16  

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