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simultaneous control of shape and microstructure to achieve the high-value-added manufacturing of magnesium alloy products

Research Project

Project/Area Number 18K14025
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 26050:Material processing and microstructure control-related
Research InstitutionIbaraki University

Principal Investigator

Onuki Yusuke  茨城大学, フロンティア応用原子科学研究センター, 産学官連携助教 (50746998)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywordsマグネシウム合金 / 集合組織 / 動的再結晶 / 曲げ加工 / マグネシム合金 / 塑性加工 / 中性子回折 / 塑性変形 / 塑性加工・成形 / 加工・熱処理 / 結晶・組織制御
Outline of Final Research Achievements

Magnesium alloys are light and rigid structural materials while their ductility is not as good as steels and aluminum alloys. In this study, however, we observed an excellent ductility of Ca-added magnesium alloy at high temperatures (200~300℃). By heating only the part to be deformed, a large deformation could be achieved, which consumed minimum energy.

Academic Significance and Societal Importance of the Research Achievements

軽量高強度のマグネシウム合金の利用拡大は、自動車・鉄道車両などの軽量化に寄与し、二酸化炭素排出量の低下に貢献できる。本研究はマグネシウム合金の「形を作る」プロセスを提案することで、この社会的課題に対するアプローチを示しました。学術的な観点からは、高温でのマグネシウム合金の延性改善メカニズムが、鉄鋼やアルミニウム合金とは異なる現象に起因していることを明らかにした。これについてはまだ不明な点が多いですが、今後の研究によって、「延性に乏しくすぐ割れる」というマグネシウム合金の常識を覆す可能性がある。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (9 results)

All 2021 2020 2019 2018 Other

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (6 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results) Book (1 results) Remarks (1 results)

  • [Journal Article] Anomalous Twinning as the Macroscopic Deformation Mechanism for AZ31 Magnesium Alloy2019

    • Author(s)
      Onuki Yusuke、Sato Shigeo
    • Journal Title

      Key Engineering Materials

      Volume: 810 Pages: 95-100

    • DOI

      10.4028/www.scientific.net/kem.810.95

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Simultaneous Control of Texture, Microstructure, and Shape by Hot Deformation for Magnesium Alloy AZX6122021

    • Author(s)
      Yusuke Onuki, Kasumi Masaoka, Shigeo Sato
    • Organizer
      ICOTOM19
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Microstructure and texture development in AZX612 magnesium alloy during tensile deformation at elevated temperatures2021

    • Author(s)
      Kasumi Masaoka, Yusuke Onuki, Shigeo Sato
    • Organizer
      ICOTOM19
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 難燃性マグネシウム合金AZX612の高温変形におけるその場集合組織観察2020

    • Author(s)
      正岡佳純、小貫祐介、佐藤成男
    • Organizer
      日本金属学会第167回講演大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 中性子を利用した多結晶材料の集合組織解析2019

    • Author(s)
      小貫祐介
    • Organizer
      塑性加工学会東関東支部 第57回技術懇談会
    • Related Report
      2019 Research-status Report
  • [Presentation] 六方晶金属の非等方的な結晶子微細化に対する Williamson-Hall 法の補正法検討2019

    • Author(s)
      正岡佳純,小貫祐介,佐藤成男
    • Organizer
      第55回X線分析討論会 ~X線分析を通して福島復興を考える~
    • Related Report
      2019 Research-status Report
  • [Presentation] Role of the deformation twinning on the plastic deformation and fracture of magnesium2018

    • Author(s)
      Yusuke Onuki, Shigeo Sato
    • Organizer
      NEW METHODS OF DAMAGE AND FAILURE ANALYSIS OF STRUCTURAL PARTS
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Book] X線分析の進歩512020

    • Author(s)
      日本分析化学会・X線分析研究懇談会
    • Total Pages
      344
    • Publisher
      アグネ技術センター
    • ISBN
      9784867070017
    • Related Report
      2019 Research-status Report
  • [Remarks] ResearchGate

    • URL

      https://www.researchgate.net/profile/Yusuke_Onuki2

    • Related Report
      2019 Research-status Report

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Published: 2018-04-23   Modified: 2022-01-27  

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