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Development of strong and formable magnesium sheet alloy based on the clarification of the origin of bake-hardenability

Research Project

Project/Area Number 18H01756
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 26050:Material processing and microstructure control-related
Research InstitutionNational Institute for Materials Science

Principal Investigator

SASAKI Taisuke  国立研究開発法人物質・材料研究機構, 磁性・スピントロニクス材料研究拠点, 主幹研究員 (30615993)

Co-Investigator(Kenkyū-buntansha) 塚田 祐貴  名古屋大学, 工学研究科, 准教授 (00620733)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥16,900,000 (Direct Cost: ¥13,000,000、Indirect Cost: ¥3,900,000)
Fiscal Year 2020: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2019: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2018: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Keywordsマグネシウム合金 / 時効硬化 / 成形性 / ベークハード性 / 微細組織 / 塑性加工 / 微細組織解析 / 強度 / シミュレーション / フェーズフィールドシミュレーション / 時効析出 / 3次元アトムプローブ / 加工性
Outline of Final Research Achievements

Lightweight magnesium (Mg) alloys are expected to have a great weight saving effect if they are used as structural materials for transportation vehicles. The purpose of this work is to develop novel Mg alloys, which exhibit comparable room temperature formability and strength with aluminum alloys. The main research outcome is the development of a bake-hardenable (BH) Mg alloy, in which the strength is substantially increased by a short time aging after press forming. The bake-hardenability is attributed to the dislocation locking by the formation of Cottrell atmosphere and the precipitation hardening effect due to the formation of solute clusters. Based on the clarification of the pinning force of dislocation by solute elements and design strategy to maximize the bake-hardenability and the formability, we succeeded in developing an alloy with the best balance of strength and formability among Mg alloys.

Academic Significance and Societal Importance of the Research Achievements

本研究では、強化手法として従来の商用マグネシウム合金には用いられてこなかった溶質クラスタや転位芯への溶質元素偏析を用いることで、既存のマグネシウム合金を凌駕し、アルミニウム合金に並ぶ室温成形性と強度を兼ね備えた新規なマグネシウム合金の開発に成功した。今後、電気自動車の急速な普及が予測されるが、駆動モーターなどの搭載に伴い重量が増加するため、エネルギー効率向上や航続距離の長距離化には車体軽量化が必要不可欠である。本研究において得た成果をさらに発展させて、力学特性のみならず、耐食性、生産性に優れたマグネシウム合金を開発することができれば、車体軽量化に貢献できる可能性がある。

Report

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

    (47 results)

All 2021 2020 2019 2018 Other

All Int'l Joint Research (4 results) Journal Article (13 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 13 results,  Open Access: 3 results) Presentation (27 results) (of which Int'l Joint Research: 2 results,  Invited: 7 results) Book (1 results) Remarks (1 results) Patent(Industrial Property Rights) (1 results)

  • [Int'l Joint Research] University of Virginia/Johns Hopkins University/University of Tennessee(米国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] Helmholtz Zentrum Geeshtacht(ドイツ)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] University of Virginia/Johns Hopkins University(米国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] University of Virginia(米国)

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Room-temperature stretch formability, tensile properties, and microstructures of precipitation hardenable Mg-6Zn-0.2Ca (mass%) alloy sheets micro-alloyed with Ce or Y2021

    • Author(s)
      Nakata T.、Li Z.H.、Sasaki T.T.、Hono K.、Kamado S.
    • Journal Title

      Materials Science and Engineering: A

      Volume: 804 Pages: 140563-140563

    • DOI

      10.1016/j.msea.2020.140563

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Toward Development of Strong and Formable Magnesium Alloy Sheets with Bake-Hardenability2021

    • Author(s)
      T.T. Sasaki, M.-Z. Bian, Z.H. Li and K. Hono
    • Journal Title

      JOM

      Volume: 73 Issue: 5 Pages: 1471-1483

    • DOI

      10.1007/s11837-021-04613-1

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Simultaneous achievement of high thermal conductivity, high strength and formability in Mg-Zn-Ca-Zr sheet alloy2020

    • Author(s)
      Li Z. H.、Sasaki T. T.、Shiroyama T.、Miura A.、Uchida K.、Hono K.
    • Journal Title

      Materials Research Letters

      Volume: 8 Issue: 9 Pages: 335-340

    • DOI

      10.1080/21663831.2020.1759718

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Role of Zn on the room temperature formability and strength in Mg-Al-Ca-Mn sheet alloys2020

    • Author(s)
      Li Z.H.、Sasaki T.T.、Bian M.Z.、Nakata T.、Yoshida Y.、Kawabe N.、Kamado S.、Hono K.
    • Journal Title

      Journal of Alloys and Compounds

      Volume: 847 Pages: 156347-156347

    • DOI

      10.1016/j.jallcom.2020.156347

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effects of Zn Additions on the Room Temperature Formability and Strength in Mg-1.2Al-0.5Ca-0.4Mn Alloy Sheets2020

    • Author(s)
      Li Z. H.、Sasaki T. T.、Bian M. Z.、Nakata T.、Yoshida Y.、Kawabe N.、Kamado S.、Hono K.
    • Journal Title

      Magnesium Technology 2020

      Volume: - Pages: 105-111

    • DOI

      10.1007/978-3-030-36647-6_18

    • ISBN
      9783030366469, 9783030366476
    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Simultaneous achievement of high thermal conductivity, high strength and formability in Mg-Zn-Ca-Zr sheet alloy2020

    • Author(s)
      Z.H. Li, T.T. Sasaki, T. Shiroyama, A. Miura, K. Uchida, K. Hono
    • Journal Title

      Materials Research Letters

      Volume: -

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Development of age-hardenable wrought magnesium alloy2019

    • Author(s)
      Sasaki Taisuke T.、Hono Kazuhiro
    • Journal Title

      Journal of Japan Institute of Light Metals

      Volume: 69 Issue: 4 Pages: 217-222

    • DOI

      10.2464/jilm.69.217

    • NAID

      130007684570

    • ISSN
      0451-5994, 1880-8018
    • Year and Date
      2019-04-30
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Change of Deformation Mechanisms Leading to High Strength and Large Ductility in Mg-Zn-Zr-Ca Alloy with Fully Recrystallized Ultrafine Grained Microstructures2019

    • Author(s)
      Zheng Ruixiao、Bhattacharjee Tilak、Gao Si、Gong Wu、Shibata Akinobu、Sasaki Taisuke、Hono Kazuhiro、Tsuji Nobuhiro
    • Journal Title

      Scientific Reports

      Volume: 9 Issue: 1 Pages: 11702-11702

    • DOI

      10.1038/s41598-019-48271-5

    • NAID

      120007006236

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Determining the strength of GP zones both parallel and perpendicular to the zone2019

    • Author(s)
      .J. Bhattacharyya, T.T. Sasaki, T. Nakata, K. Hono, S. Kamado, and S.R. Agnew
    • Journal Title

      Acta Materialia

      Volume: 171 Pages: 231-239

    • DOI

      10.1016/j.actamat.2019.04.035

    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Origin of texture weakening in a rolled ZEX4101 alloy sheet and its effect on room temperature formability and tensile property2019

    • Author(s)
      Nakata T.、Xu C.、Uehara Y.、Sasaki T.T.、Kamado S.
    • Journal Title

      Journal of Alloys and Compounds

      Volume: 782 Pages: 304-314

    • DOI

      10.1016/j.jallcom.2018.12.194

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 時効析出を用いたマグネシウム展伸合金の開発2019

    • Author(s)
      佐々木泰祐、宝野和博
    • Journal Title

      軽金属

      Volume: 69 Pages: 217-222

    • NAID

      130007684570

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Bake-hardenable Mg?Al?Zn?Mn?Ca sheet?alloy processed by twin-roll casting2018

    • Author(s)
      Bian M.Z.、Sasaki T.T.、Nakata T.、Yoshida Y.、Kawabe N.、Kamado S.、Hono K.
    • Journal Title

      Acta Materialia

      Volume: 158 Pages: 278-288

    • DOI

      10.1016/j.actamat.2018.07.057

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effects of rolling conditions on the microstructure and mechanical properties in a Mg?Al?Ca?Mn?Zn alloy sheet2018

    • Author(s)
      Bian M.Z.、Sasaki T.T.、Nakata T.、Kamado S.、Hono K.
    • Journal Title

      Materials Science and Engineering: A

      Volume: 730 Pages: 147-154

    • DOI

      10.1016/j.msea.2018.05.065

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Presentation] Achieving excellent room temperature formability and high strength in wrought magnesium alloy sheets2021

    • Author(s)
      Taisuke Sasaki, Zehao Li, Kazuhiro Hono
    • Organizer
      TMS2021 150th Annual Meeting & Exhibition
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Role of Zn on the yielding behavior in Mg-Al-Ca based dilute alloys2021

    • Author(s)
      Li Zehao, Taisuke Sasaki, Si Gao, Nobuhiro Tsuji, Kazuhiro Hono
    • Organizer
      日本金属学会2021年春期(第168回)講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 高強度高成形性マグネシウム合金板材の開発2021

    • Author(s)
      佐々木泰祐、ビャンミンジェ、リーゼハオ、宝野和博
    • Organizer
      日本金属学会2021年春期(第168回)講演会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Achieving excellent room temperature formability by tailoring texture in a novel bake-hardenable magnesium alloy sheet2021

    • Author(s)
      Zehao Li, Taisuke Sasaki, Kazuhiro Hono, Ming-zhe Bian, Taiki Nakata, Shigeharu Kamado, Yu Yoshida, Nozomu Kawabe
    • Organizer
      International Conference on Textures of Materials (ICOTOM19)
    • Related Report
      2020 Annual Research Report
  • [Presentation] Effects of Zn additions on the room temperature formability and strength in Mg-1.2Al-0.5Ca-0.4Mn alloy sheets2020

    • Author(s)
      Zehao Li, Taisuke Sasaki, Kazuhiro Hono, Ming-zhe Bian, Taiki Nakata, Shigeharu Kamado, Yu Yoshida, Nozomu Kawabe
    • Organizer
      TMS 2020 Annual Meeting&Exhibition
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Atomic-scale investigation for microstructure-conductivity correlation in a thermal conductive Mg-Zn-Ca-Zr sheet alloy2020

    • Author(s)
      Zehao Li, Taisuke Sasaki, Asuka Miura, Ken-ichi Uchida, Taisuke Shiroyama, Kazuhiro Hono
    • Organizer
      日本金属学会第春期(166回)講演大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 高強度高成形性マグネシウム合金板材の開発2020

    • Author(s)
      佐々木泰祐、ビャンミンジェ、リーゼハオ、宝野和博
    • Organizer
      日本金属学会第春期(166回)講演大会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Mg-Al-Ca合金圧延材の特性と組織に及ぼすZn添加の影響2020

    • Author(s)
      リーゼハオ、佐々木泰祐、ビャンミンジェ、中田大貴、吉田雄、河部望、鎌土重晴、宝野和博
    • Organizer
      軽金属学会 第138回春期大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Precipitation sequence in a Mg-0.3Ca-0.6Zn alloy2020

    • Author(s)
      Zehao Li, Taisuke Sasaki, Du Chen, Kang Wang, Bi-Cheng Zhou, Kazuhiro Hono
    • Organizer
      日本金属学会 秋期(第167回)講演大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 高強度高成形性マグネシウム合金板材の開発2020

    • Author(s)
      佐々木泰祐、ビャンミンジェ、リーゼハオ、中田大貴、鎌土重晴、宝野和博
    • Organizer
      MRM フォーラム2020
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Effect of grain size on the age-hardening behavior in Mg-Zn-Ca-Zr alloy2020

    • Author(s)
      Jhe-Yu Lin, Taisuke Sasaki, Nozomu Adachi, Yoshikazu Todaka, Kazuhiro Hono
    • Organizer
      日本金属学会 秋期(第167回)講演大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Mg合金の転位偏析に対するフェーズフィールド解析2020

    • Author(s)
      森祥吉、塚田祐貴、小山敏幸
    • Organizer
      日本金属学会第167回講演大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Effects of Zn additions on the room temperature formability and strength in Mg-1.2Al-0.5Ca-0.4Mn alloy sheets2020

    • Author(s)
      Z.H. Li, T.T. Sasaki, M.-Z, Bian, T. Nakata, Y. Yoshida, S. Kamado, K. Hono
    • Organizer
      TMS 2020 Annual meeting and exhibition
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 高強度高成形性マグネシウム合金板材の開発2020

    • Author(s)
      佐々木泰祐
    • Organizer
      日本金属学会第166回講演大会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Atomic-scale investigation for microstructure-conductivity correlation in a thermal conductive Mg-Zn-Ca-Zr sheet alloy2020

    • Author(s)
      Li Zehao、佐々木泰祐、三浦飛鳥、城山泰祐、内田健一、宝野和博
    • Organizer
      日本金属学会第166回講演大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 軽金属材料の3DAP解析と合金開発への展開2019

    • Author(s)
      佐々木泰祐
    • Organizer
      日本学術振興会材料の微細組織と機能性第133委員会 第244回研究会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Effects of Zn additions on the room temperature formability and strength in Mg-1.2Al-0.5Ca-0.4Mn alloy sheets2019

    • Author(s)
      Li Zehao、佐々木泰祐、ビャンミンジェ、中田大貴、鎌土重晴、吉田雄、河部望、宝野和博
    • Organizer
      日本金属学会第165回講演大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Mg合金における溶質元素の転位偏析シミュレーション2019

    • Author(s)
      森祥吉、塚田祐貴、小山敏幸
    • Organizer
      日本金属学会第165回講演大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Microstructural evolution and mechanical properties of a bake-hardenable Mg-Zn-Ca-Zr sheet alloy Microstructural evolution and mechanical properties of a bake-hardenable Mg-Zn-Ca-Zr sheet alloy2018

    • Author(s)
      M.-Z. Bian, T.T. Sasaki, T. Nakata, S. Kamado, K. Hono
    • Organizer
      日本金属学会第163回講演大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Mg-Zn-Ca-Zr合金の焼付硬化性に及ぼすZn添加量の影響2018

    • Author(s)
      吉光悠之、佐々木泰祐、BIAN Ming-Zhe、中田大貴、大久保忠勝、鎌土重晴、宝野和博
    • Organizer
      日本金属学会第163回講演大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Twin-roll cast bake-hardenable AXMZ1000 sheet alloy Twin-roll cast bake-hardenable AXMZ1000 sheet alloy2018

    • Author(s)
      M.-Z. Bian, T.T. Sasaki, T. Nakata, Y. Yoshida, N. Kawabe, S. Kamado, K. Hono
    • Organizer
      The 11th International Conference on Magnesium Alloys and Their Applications
    • Related Report
      2018 Annual Research Report
  • [Presentation] First-ever assessment of GP zone strength parallel and perpendicular to the zone First-ever assessment of GP zone strength parallel and perpendicular to the zone2018

    • Author(s)
      J. Bhattacharyya, T.T. Sasaki, T. Nakata, S. Kamado, K. Hono
    • Organizer
      The 11th International Conference on Magnesium Alloys and Their Applications
    • Related Report
      2018 Annual Research Report
  • [Presentation] Development of heat-treatable Mg-Zn-Ca sheet alloy with high strength and excellent room temperature formability Development of heat-treatable Mg-Zn-Ca sheet alloy with high strength and excellent room temperature formability2018

    • Author(s)
      T.T. Sasaki, M.-Z. Bian, Y. Yoshimitsu, T. Nakata, T. Ohkubo, S. Kamado, K. Hono
    • Organizer
      The 11th International Conference on Magnesium Alloys and Their Applications
    • Related Report
      2018 Annual Research Report
  • [Presentation] Zn 添加量の最適化による高強度高成形性ベークハード型 Mg-Zn-Ca-Zr 合金の開発 Zn 添加量の最適化による高強度高成形性ベークハード型 Mg-Zn-Ca-Zr 合金の開発2018

    • Author(s)
      吉光悠之、佐々木泰祐、中田大貴、鎌土重晴、大久保忠勝、宝野和博
    • Organizer
      軽金属学会第134回春季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 焼付硬化性Mg-1.3Al-0.8Zn-0.7Mn-0.5Ca合金板材の開発2018

    • Author(s)
      Bian Ming-Zhe、佐々木泰祐、中田大貴、吉田雄、河部望、鎌土重晴、宝野和博
    • Organizer
      軽金属学会第134回春季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] APT/TEM analyses of solute segregations along dislocations and solute clustering in bake-hardenable magnesium alloy2018

    • Author(s)
      M.-Z. Bian, T.T. Sasaki, T. Nakata, S. Kamado, K. Hono
    • Organizer
      Atom Probe Tomography and Microscopy 2018
    • Related Report
      2018 Annual Research Report
  • [Presentation] Helios G4 UX を用いたTEM・3DAP解析用試料の作製とTitan200、3DAPを用いた原子レベル微細組織解析2018

    • Author(s)
      佐々木泰祐、大久保忠勝、宝野和博
    • Organizer
      サーモフィッシャーサイエンティフィックマテリアルサイエンスセミナー
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Book] マグネシウム合金の最先端技術と応用展開2020

    • Author(s)
      河村能人、千野靖正
    • Total Pages
      338
    • Publisher
      シーエムシー出版
    • ISBN
      9784781315058
    • Related Report
      2020 Annual Research Report
  • [Remarks] 秘密はこの粒! 誕生 室温プレス可能なマグネシウム合金(You tube 動画)

    • URL

      https://www.youtube.com/watch?v=1KTn7XqSII0&t=3s

    • Related Report
      2019 Annual Research Report
  • [Patent(Industrial Property Rights)] マグネシウム合金時効処理材及びその製造方法、並びにそれを使用したOA機器、輸送機器及びその部品2019

    • Inventor(s)
      リーゼハオ、佐々木泰祐、宝野和博、城山泰祐
    • Industrial Property Rights Holder
      物質・材料研究機構/エルジーエレクトロニクスジャパンラボ株式会社
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2019-219147
    • Filing Date
      2019
    • Related Report
      2019 Annual Research Report

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

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