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Development of heat-resistant ferrous alloys based on new precipitation hardening mechanism

Research Project

Project/Area Number 26289259
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypePartial Multi-year Fund
Section一般
Research Field Structural/Functional materials
Research InstitutionOsaka University

Principal Investigator

Yasuda Hiroyuki  大阪大学, 工学(系)研究科(研究院), 教授 (60294021)

Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥15,860,000 (Direct Cost: ¥12,200,000、Indirect Cost: ¥3,660,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2015: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2014: ¥11,570,000 (Direct Cost: ¥8,900,000、Indirect Cost: ¥2,670,000)
Keywords構造・機能材料 / 格子欠陥 / 転位 / 析出強化 / 耐熱合金
Outline of Final Research Achievements

In the present study, we succeeded in developing high temperature structural materials composed of (bcc+L21) phases. The L21 phase is precipitated in the bcc matrix in Fe-Al-Ni and Fe-Al-Co single crystals doped with a small amount of Ti and V. The (bcc+L21) alloys show higher strength than ferritic heat-resistant steels. Moreover, <001> dislocations which hardly move in bcc metals can be observed in V-doped crystals. So, the behavior of <001> dislocations in the (bcc+L21) single crystals can be examined. In addition, co-doping of Ti and V leads to a decrease in the misfit strain, which results in high strength at high temperatures.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Annual Research Report
  • 2014 Annual Research Report

Research Products

(16 results)

All 2017 2016 2015 2014

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Acknowledgement Compliant: 1 results) Presentation (14 results) (of which Int'l Joint Research: 4 results,  Invited: 2 results)

  • [Journal Article] Deformation behavior of Fe-Al-Co-Ti single crystals containing Co2AlTi Precipitates2017

    • Author(s)
      H. Y. Yasuda and R. Kobayashi
    • Journal Title

      Materials Science Forum

      Volume: 879 Pages: 2210-2215

    • DOI

      10.4028/www.scientific.net/msf.879.2210

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Deformation behavior of Fe-Al-Co single crystals containing CoAl precipitates2014

    • Author(s)
      H.Y. Yasuda, K. Soma and Y. Odawara
    • Journal Title

      Materials Science Forum

      Volume: 783-786 Pages: 2869-2874

    • DOI

      10.4028/www.scientific.net/msf.783-786.2869

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Presentation] 合金設計や組織制御によるFe-Al-Ni-Cr-Mo耐熱合金の延性の向上2017

    • Author(s)
      池田憲史、趙研、安田弘行
    • Organizer
      日本鉄鋼協会2017年春季大会
    • Place of Presentation
      首都大学東京
    • Related Report
      2016 Annual Research Report
  • [Presentation] 金属間化合物の析出物を利用した新規強化機構と転位のバーガースベクトル変換2016

    • Author(s)
      安田弘行、趙研
    • Organizer
      日本金属学会2016年春期大会
    • Place of Presentation
      東京理科大学葛飾キャンパス
    • Year and Date
      2016-03-23
    • Related Report
      2015 Annual Research Report
  • [Presentation] Fe-Al-Co-V耐熱合金の相安定性と力学特性2016

    • Author(s)
      安西祐規, 趙 研, 安田弘行
    • Organizer
      日本金属学会2016年秋期大会
    • Place of Presentation
      大阪大学
    • Related Report
      2016 Annual Research Report
  • [Presentation] B2型析出物を有するFe-Al-Ni-Co合金単結晶の変形挙動の解明2016

    • Author(s)
      吉本隆, 趙 研, 安田弘行
    • Organizer
      日本金属学会2016年秋期大会
    • Place of Presentation
      大阪大学
    • Related Report
      2016 Annual Research Report
  • [Presentation] Deformation behavior of Fe-Al based single crystals containing Ni2AlV precipitates2016

    • Author(s)
      H. Y. Yasuda and H. Otani
    • Organizer
      Materials Research Society 2016 fall meeting
    • Place of Presentation
      米国・ボストン
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Deformation behavior of Fe-Al-Co-Ti single crystals containing Co2AlTi precipitates2016

    • Author(s)
      H. Y. Yasuda and R. Kobayashi
    • Organizer
      Thermec 2016
    • Place of Presentation
      オーストリア・グラーツ
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Deformation behavior of Fe-Al alloy single crystals containing Heusler precipitates2016

    • Author(s)
      H. Y. Yasuda, H. Yakage, Y. Shinohara and K. Cho
    • Organizer
      PRICM-9
    • Place of Presentation
      日本・京都国際会館
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fe-based superalloys strengthened by B2-type precipitates2016

    • Author(s)
      H. Y. Yasuda
    • Organizer
      KIM-JIMシンポジウム
    • Place of Presentation
      韓国・釜山
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Co2AlTi析出物を有するFe-Al-Co-Ti単結晶の変形挙動2015

    • Author(s)
      小林 良太、趙研、安田弘行
    • Organizer
      日本金属学会2015年秋期大会
    • Place of Presentation
      九州大学伊都キャンパス
    • Year and Date
      2015-09-16
    • Related Report
      2015 Annual Research Report
  • [Presentation] Fe-Al-Ni-V合金におけるNi2AlV相の析出と力学特性2015

    • Author(s)
      大谷浩史、趙研、安田弘行
    • Organizer
      日本金属学会2015年秋期大会
    • Place of Presentation
      九州大学伊都キャンパス
    • Year and Date
      2015-09-16
    • Related Report
      2015 Annual Research Report
  • [Presentation] 金属間化合物の析出物を利用した新規強化機構2014

    • Author(s)
      安田弘行
    • Organizer
      材料の微細組織と機能性第133委員会第224回研究会
    • Place of Presentation
      大阪府立大学 I-siteなんば
    • Year and Date
      2014-12-13
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Deformation behavior of Fe-Al based single crystals containing Ni2AlTi precipitates2014

    • Author(s)
      H. Y. Yasuda and H. Otani
    • Organizer
      Materials Researc Society
    • Place of Presentation
      米国・ボストン(ハインズコンベンションセンター)
    • Year and Date
      2014-12-02
    • Related Report
      2014 Annual Research Report
  • [Presentation] 小田原慶明、安田弘行2014

    • Author(s)
      CoAl析出物を有するFe-Al-Co単結晶中の1/2<111>転位と<001>転位の運動挙動
    • Organizer
      日本金属学会2014年秋期大会
    • Place of Presentation
      名古屋大学
    • Year and Date
      2014-09-25
    • Related Report
      2014 Annual Research Report
  • [Presentation] Ni2AlTi 析出物によるFe-Al-Ni-Ti合金単結晶の変形挙動2014

    • Author(s)
      大谷浩史、安田弘行
    • Organizer
      日本金属学会2014年秋期大会
    • Place of Presentation
      名古屋大学
    • Year and Date
      2014-09-25
    • Related Report
      2014 Annual Research Report

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Published: 2014-04-04   Modified: 2018-03-22  

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