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Formation of hybrid structure and enhancement of ductility in beta titanium alloys using elemental segregation

Research Project

Project/Area Number 23560851
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Structural/Functional materials
Research InstitutionNational Institute for Materials Science

Principal Investigator

EMURA Satoshi  独立行政法人物質・材料研究機構, 元素戦略材料センター, 主任研究員 (00354184)

Co-Investigator(Renkei-kenkyūsha) TSUCHIYA Koichi  物質・材料研究機構, 元素戦略材料センター, センター長 (50236907)
Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywordsベータ型チタン合金 / 偏析 / ヘテロ構造 / 強度延性バランス / オメガ相
Research Abstract

This study aimed at improving the mechanical properties of beta type Ti-Mo alloys using swirly segregation of Mo (VGS structure) and investing the property improvement mechanism. Applying local hardness distribution corresponding to the VGS structure through appropriate heat treatment restricted the local deformation (necking) during room temperature tensile testing and enhanced the total elongation values. Giving the VGS structure also improved the room temperature total elongation values in Fe added Ti-10Mo-Fe alloys. Changing the initial ingot size before forging and rolling affected the morphology of VGS structure and room temperature tensile properties.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (10 results)

All 2014 2013 2012 2011

All Presentation (10 results)

  • [Presentation] 渦状偏析組織を有するTi-Mo合金の引張特性に及ぼすインゴットサイズの影響2014

    • Author(s)
      江村聡、井誠一郎、土谷浩一
    • Organizer
      日本金属学会第154回春期講演大会
    • Place of Presentation
      東京工業大学(東京都)
    • Related Report
      2013 Final Research Report
  • [Presentation] 渦状偏析組織を有するTi-Mo合金の引張特性に及ぼすインゴットサイズの影響2014

    • Author(s)
      江村 聡, 井 誠一郎, 土谷 浩一
    • Organizer
      日本金属学会
    • Place of Presentation
      東京工業大学
    • Related Report
      2013 Annual Research Report
  • [Presentation] 渦状偏析組織を有するTi-Mo合金の室温引張特性に及ぼすFe添加の影響2013

    • Author(s)
      江村聡、井誠一郎、閔小華、土谷浩一
    • Organizer
      日本金属学会第152回春期講演大会
    • Place of Presentation
      東京理科大学(東京都)
    • Related Report
      2013 Final Research Report
  • [Presentation] Effect of swirly segregation of Mo on omega phase precipitation behavior and tensile property of Ti-12Mo alloy2013

    • Author(s)
      S. Emura, X. H. Min, S. Ii a d K. Tsuchiya
    • Organizer
      TMS2013 Annual Meeting
    • Place of Presentation
      Henry B. Gonzalez Convention Center, San Antonio, Texas, USA
    • Related Report
      2013 Final Research Report
  • [Presentation] 渦状偏析組織を有するTi-Mo合金の室温引張特性に及ぼすFe添加の影響2013

    • Author(s)
      江村 聡、井 誠一郎、閔 小華、土谷 浩一
    • Organizer
      日本金属学会
    • Place of Presentation
      東京理科大学
    • Related Report
      2012 Research-status Report
  • [Presentation] Effect of swirly segregation of Mo on omega phase precipitation behavior and tensile property of Ti-12Mo alloy2013

    • Author(s)
      Satoshi Emura, Xiaohua Min, Seiichiro Ii, Koichi Tsuchiya
    • Organizer
      TMS2013 Annual Meeting
    • Place of Presentation
      San Antonio, TX, USA
    • Related Report
      2012 Research-status Report
  • [Presentation] Ti-12Mo合金の室温引張変形に及ぼす偏析組織および時効処理の影響2012

    • Author(s)
      江村聡、井誠一郎、閔小華、土谷浩一
    • Organizer
      日本金属学会第151回秋期講演大会
    • Place of Presentation
      愛媛大学(愛媛県)
    • Related Report
      2013 Final Research Report
  • [Presentation] Ti-12Mo合金の室温引張変形に及ぼす偏析組織および時効処理の影響2012

    • Author(s)
      江村 聡、井 誠一郎、閔 小華、土谷 浩一
    • Organizer
      日本金属学会
    • Place of Presentation
      愛媛大学
    • Related Report
      2012 Research-status Report
  • [Presentation] Ti-12Mo合金の室温引張挙動に及ぼす偏析組織および時効処理の影響2011

    • Author(s)
      江村聡、井誠一郎、閔小華、土谷浩一
    • Organizer
      日本金属学会第149回秋期講演大会
    • Place of Presentation
      沖縄コンベンションセンター(沖縄県)
    • Related Report
      2013 Final Research Report
  • [Presentation] Ti-12Mo合金の室温引張挙動に及ぼす偏析組織および時効処理の影響2011

    • Author(s)
      江村 聡, 井 誠一郎, Xiaohua Min, 土谷 浩一
    • Organizer
      日本金属学会
    • Place of Presentation
      沖縄コンベンションセンター
    • Related Report
      2011 Research-status Report

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Published: 2011-08-05   Modified: 2019-07-29  

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