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Analysis of effects of fine nanoparticles and grain boundary character distribution on abnormal grain growth in friction stir welded material

Research Project

Project/Area Number 20760502
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Material processing/treatments
Research InstitutionIndustrial Research Institute of Osaka Prefecture

Principal Investigator

HIRATA Tomotake  Industrial Research Institute of Osaka Prefecture, 機械金属部, 主任研究員 (20359433)

Co-Investigator(Renkei-kenkyūsha) TANAKA Tsutomu  大阪府立産業技術総合研究所, 機械金属部, 研究員 (90416248)
MORISHIGE Taiki  大阪府立産業技術総合研究所, 機械金属部, 客員研究員 (30530076)
Research Collaborator HIGASHI Kenji  大阪府立大学, 工学研究科, 教授 (50173133)
TSUJIKAWA Masato  大阪府立大学, 工学研究科, 准教授 (90172006)
TAKIGAWA Yorinobu  大阪府立大学, 工学研究科, 准教授 (70382231)
UESUGI Tokuteru  大阪府立大学, 工学研究科, 助教 (10405342)
Project Period (FY) 2008 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2009: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2008: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords結晶・組織制御 / 粒界性格分布 / 摩擦攪拌接合 / 結晶粒径 / 異常粒成長 / 微細ナノ粒子 / 動的再結晶 / アルミニウム合金 / マグネシウム合金
Research Abstract

In the friction stir welded (FSW) material, the abnormal grain growth (AGG) often occurs in the microstructure of the weld zone during the post-FSW heat treatment. In this study, the influence of microstructural features on GG was investigated to prevent the AGG. The addition of fine nanoparticles was effective for preventing the AGG. And also it was considered to prevent GG by controlling the grain boundary character distribution by the optimization of welding condition. In addition, it was confirmed that the grain size can be controlled by adjusting the alloying element and the purity level. It is concluded that these results are very important to improve a reliability of FSWed material.

Report

(4 results)
  • 2010 Annual Research Report   Final Research Report ( PDF )
  • 2009 Annual Research Report
  • 2008 Annual Research Report
  • Research Products

    (13 results)

All 2011 2010 2009 2008

All Journal Article (6 results) (of which Peer Reviewed: 6 results) Presentation (7 results)

  • [Journal Article] Influences of alloying elements on grain sizes in friction stir processed aluminum and aluminum alloys.2011

    • Author(s)
      平田智丈、森重大樹、辻川正人、東健司
    • Journal Title

      Proceedings of TMS 2011 annual meeting CD-ROM

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Effect of Mg content on the minimum grain size of Al? Mg alloys obtained by friction stir processing.2011

    • Author(s)
      森重大樹、平田智丈、上杉徳照、瀧川順庸、辻川正人、東健司
    • Journal Title

      Scripta Materialia 64

      Pages: 355-358

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Effect of Mg content on the minimum grain size of Al-Mg alloys obtained by friction stir processing2011

    • Author(s)
      森重大樹、平田智丈、上杉徳照、瀧川順庸、辻川正人、東健司
    • Journal Title

      Scripta Materialia

      Volume: 64 Pages: 355-358

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Influences of alloying elements on grain sizes in friction stir processed aluminum and aluminum alloys2011

    • Author(s)
      平田智丈、森重大樹、辻川正人、東健司
    • Journal Title

      Proceedings of TMS 2011 annual meeting

      Volume: (CD-ROM)

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Comprehensive analysis of minimum grain size in pure aluminum using friction stir processing.2010

    • Author(s)
      森重大樹、平田智丈、辻川正人、東健司
    • Journal Title

      Materials Letters 64

      Pages: 1905-1908

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Comprehensive analysis of minimum grain size in pure aluminum using friction stir processing2010

    • Author(s)
      森重大樹、平田智丈、辻川正人、東健司
    • Journal Title

      Materials.Letters

      Volume: 64 Pages: 1905-1908

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] 強ひずみ加工を施した純アルミニウムの結晶粒径に及ぼす純度の影響2011

    • Author(s)
      平田智丈、森重大樹、上杉徳照、瀧川順庸、辻川正人、東健司
    • Organizer
      軽金属学会春期大会
    • Place of Presentation
      名古屋大学
    • Year and Date
      2011-05-22
    • Related Report
      2010 Final Research Report
  • [Presentation] Influences of alloying elements on grain sizes in friction stir processed pure aluminum and aluminum alloys2011

    • Author(s)
      平田智丈、森重大樹、辻川正人、東健司
    • Organizer
      TMS 2011 140^<th> annual meeting
    • Place of Presentation
      サンディエゴ コンベンションセンター(アメリカ)
    • Year and Date
      2011-03-01
    • Related Report
      2010 Final Research Report
  • [Presentation] Influences of alloying elements on grain sizes in friction stir processed pure aluminum and aluminum alloys2011

    • Author(s)
      平田智丈、森重大樹、辻川正人、東健司
    • Organizer
      TMS 2011 140^<th> annual meeting
    • Place of Presentation
      サンディエゴ コンベンション センター(アメリカ)
    • Year and Date
      2011-03-01
    • Related Report
      2010 Annual Research Report
  • [Presentation] 超高純度アルミニウムの摩擦攪拌接合部における組織的特徴2009

    • Author(s)
      平田智丈、森重大樹、田中努
    • Organizer
      溶接学会秋季大会
    • Place of Presentation
      徳島大学工学部
    • Year and Date
      2009-09-11
    • Related Report
      2010 Final Research Report
  • [Presentation] 超高純度アルミニウムの摩擦攪拌接合部における組織的特徴2009

    • Author(s)
      平田智丈
    • Organizer
      平成21年度溶接学会秋季大会
    • Place of Presentation
      徳島大学工学部
    • Year and Date
      2009-09-11
    • Related Report
      2009 Annual Research Report
  • [Presentation] 5052アルミニウム合金とAZ31マグネシウム合金の摩擦点接合2008

    • Author(s)
      平田智丈
    • Organizer
      軽金属学会秋季大会
    • Place of Presentation
      工学院大学新宿キャンパス
    • Year and Date
      2008-11-15
    • Related Report
      2008 Annual Research Report
  • [Presentation] 摩擦攪拌技術を利用したものづくり2008

    • Author(s)
      平田智丈
    • Organizer
      産学官連携推進大会2008
    • Place of Presentation
      大阪国際会議場
    • Year and Date
      2008-07-09
    • Related Report
      2008 Annual Research Report

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Published: 2008-04-01   Modified: 2016-04-21  

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