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Effect of plastic deformation on corrosion resistance and biocompatibility of biomedical Co-Cr-Mo alloys and elucidation of its mechanism

Research Project

Project/Area Number 20K15065
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 InstitutionSendai National College of Technology

Principal Investigator

Mori Manami  仙台高等専門学校, 総合工学科, 准教授 (80731512)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2022: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords塑性加工 / ラインプロファイル解析 / 組織解析 / 生体適合性 / 耐食性 / 機械的特性 / 生体用Co-Cr-Mo / 塑性変形
Outline of Research at the Start

人工股関節や脊椎固定ロッド等に用いられる生体用Co-Cr-Mo合金は長期間の使用に耐えうる高い信頼性が求められるため、塑性加工により高強度化されて実用に供される。本研究では、生体材料として重要であるが未解明な部分が多い当該合金の耐食性や生体適合性に及ぼす塑性加工の影響を定量的な組織解析を基に明らかにする。そのため、電子顕微鏡的手法と共にこれまで力学研究に用いられてきた中性子回折を用いた転位組織解析を駆使し、塑性加工による組織変化と腐食速度や不動態化挙動との関係、さらには腐食により溶出する金属イオンなどの影響を系統的に明らかにし、生体用金属材料の基礎と応用に関する材料科学的理解を発展させる。

Outline of Final Research Achievements

In this study, we aimed to develop highly durable implants with a particular focus on biomedical Co-Cr-Mo alloys. For this purpose, we characterized how plastic working affects the corrosion resistance and biocompatibility of the alloys. The results indicated that cold working improves the adhesion between osteoblasts and the alloy surface. With quantitative neutron diffraction-based microstructural analyses, we demonstrated that strain-induced martensitic transformation and resulting textural evolution during cold working contribute to the improvement of the adhesion. Moreover, the degradation in biocompatibility was not observed in the hot-rolled materials.

Academic Significance and Societal Importance of the Research Achievements

本研究では、冷間加工により骨芽細胞と合金表面の密着性が向上するという新しい知見を中性子回折を用いた組織定量化を基に明らかにした。生体用Co-Cr-Mo合金の課題である骨適合性(オッセオインテグレーション)を向上するための指針を示し、高強度と生体適合性を両立した生体用Co-Cr-Mo合金を開発の基盤構築と、人工関節や脊椎矯正用ロッド材をはじめとした幅広い応用が期待できる。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (26 results)

All 2024 2023 2022 2021 2020 Other

All Int'l Joint Research (1 results) Journal Article (11 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 11 results,  Open Access: 5 results) Presentation (14 results) (of which Invited: 2 results)

  • [Int'l Joint Research] テキサス大学エルパソ校(米国)

    • Related Report
      2022 Research-status Report
  • [Journal Article] Effect of matrix dislocation strengthening on deformation-induced martensitic transformation behavior of metastable high-entropy alloys2023

    • Author(s)
      Kenta Yamanaka , Manami Mori , Daishin Yokosuka , Kazuo Yoshida , Yusuke Onuki , Shigeo Sato , Akihiko Chiba
    • Journal Title

      Materials Research Letters

      Volume: 12 Issue: 1 Pages: 1-9

    • DOI

      10.1080/21663831.2023.2281593

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Corrosion behavior of a Co-Cr-Mo-Si alloy in pure Al and Al-Si melt2023

    • Author(s)
      Kenta Yamanaka , Manami Mori , Kazuo Yoshida , Phacharaphon Tunthawiroon , Akihiko Chiba
    • Journal Title

      High Temperature Materials and Processes

      Volume: 42 Issue: 1 Pages: 20220278-20220278

    • DOI

      10.1515/htmp-2022-0278

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Superior hardness-corrosion-resistance combination in a Co-, Cu-modified Ni–Cr–Mo alloy via multiple nanoscale segregation mechanisms2022

    • Author(s)
      Haruka Shima, Manami Mori, Kenta Yamanaka, Kazuo Yoshida, Toshihiro Yamazaki, Akihiko Chiba
    • Journal Title

      Scripta Materialia

      Volume: 209 Pages: 114389-114389

    • DOI

      10.1016/j.scriptamat.2021.114389

    • Related Report
      2022 Research-status Report 2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] The significance of thermomechanical processing on the cellular response of biomedical Co-Cr-Mo alloys2022

    • Author(s)
      Manami Mori, Ting Guo, Kenta Yamanaka, Zuyong Wang, Kazuo Yoshida, Yusuke Onuki, Shigeo Sato, Akihiko Chiba, R.D.K. Misra
    • Journal Title

      Journal of the Mechanical Behavior of Biomedical Materials

      Volume: 133 Pages: 105360-105360

    • DOI

      10.1016/j.jmbbm.2022.105360

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Solidification behavior and porosity in electron-beam powder bed fusion of Co-Cr-Mo alloys: Effect of carbon concentrations2022

    • Author(s)
      Shoya Aota, Kenta Yamanaka, Manami Mori, Nobuyuki Sasaki, Jerome Adrien, Eric Maire, Damien Fabregue, Akihiko Chiba
    • Journal Title

      Additive Manufacturing

      Volume: 50 Pages: 103134-103134

    • DOI

      10.1016/j.addma.2022.103134

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Analysis of hierarchical microstructural evolution in electron beam powder bed fusion Ti-6Al-4V alloys via time-of-flight neutron diffraction2022

    • Author(s)
      Manami Mori, Kenta Yamanaka, Yusuke Onuki, Shigeo Sato, Akihiko Chiba
    • Journal Title

      Additive Manufacturing Letters

      Volume: 3 Pages: 100053-100053

    • DOI

      10.1016/j.addlet.2022.100053

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Quantifying the dislocation structures of additively manufactured Ti?6Al?4V alloys using X-ray diffraction line profile analysis2021

    • Author(s)
      Yamanaka Kenta、Kuroda Asumi、Ito Miyu、Mori Manami、Bian Huakang、Shobu Takahisa、Sato Shigeo、Chiba Akihiko
    • Journal Title

      Additive Manufacturing

      Volume: 37 Pages: 101678-101678

    • DOI

      10.1016/j.addma.2020.101678

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Surface evolution and corrosion behaviour of Cu-doped carbide-reinforced martensitic steels in a sulfuric acid solution2021

    • Author(s)
      Kenta Yamanaka, Manami Mori, Kazuo Yoshida, Yusuke Onuki, Shigeo Sato, Akihiko Chiba
    • Journal Title

      npj Materials Degradation

      Volume: 5 Issue: 1 Pages: 43-43

    • DOI

      10.1038/s41529-021-00187-0

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Favorable modulation of osteoblast cellular activity on Zr‐modified Co-Cr-Mo alloy: The significant impact of zirconium on cell-substrate interactions2020

    • Author(s)
      Na Gong, Ivan Montes, Krishna C. Nune, R. Devesh Kumar Misra, Kenta Yamanaka, Manami Mori, Akihiko Chiba
    • Journal Title

      Journal of Biomedical Materials Research Part B: Applied Biomaterials

      Volume: 108 Issue: 4 Pages: 1518-1526

    • DOI

      10.1002/jbm.b.34499

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Preparation of high-strength Co-Cr-Mo alloy rods via hot-caliber rolling2020

    • Author(s)
      Kenta Yamanaka, Manami Mori, Kazuo Yoshida, Sandra Balvay, Daniel Hartmann, Damien Fabregue, Akihiko Chiba
    • Journal Title

      Materialia

      Volume: 12 Pages: 100729-100729

    • DOI

      10.1016/j.mtla.2020.100729

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Corrosion mechanism of an equimolar AlCoCrFeNi high-entropy alloy additively manufactured by electron beam melting2020

    • Author(s)
      Kenta Yamanaka, Hiroshi Shiratori, Manami Mori, Kazuyo Omura, Tadashi Fujieda, Kosuke Kuwabara, Akihiko Chiba
    • Journal Title

      npj Materials Degradation

      Volume: 4 Issue: 1 Pages: 24-24

    • DOI

      10.1038/s41529-020-00127-4

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 中性子回折を用いた準安定ハイエントロピー合金の強化機構・塑性変形解析2024

    • Author(s)
      森真奈美
    • Organizer
      第5回量子ビーム材料解析セミナー「量子ビームを利用した金属材料の転位解析」
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 準安定ハイエントロピ―合金の高強度化と塑性変形挙動2024

    • Author(s)
      森真奈美
    • Organizer
      日本材料学会 東北支部 材料フォーラム講演会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 生体用Co-Cr-Mo合金の結晶粒微細化挙動と機械的特性に及ぼす熱間鍛造条件の影響2024

    • Author(s)
      森真奈美, 藤野律, 山中謙太
    • Organizer
      日本金属学会2024年春期(第174回)講演大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Mitigating Gas Pores in Electron Beam Powder Bed Fusion2023

    • Author(s)
      Kenta Yamanaka, Shoya Aota, Haruko Numata, Yujie Cui, Yufan Zhao, Manami Mori, Jerome Adrien, Eric Maire, Damien Fabregue, Akihiko Chiba
    • Organizer
      日本金属学会2023年(第173回)秋期講演大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] レーザー積層造形で作製したTi-6Al-4V合金のその場中性子回折を用いた組織・塑性変形解析2023

    • Author(s)
      森 真奈美, 山中 謙太, 小貫 祐介, 佐藤 成男, F. Rezai-Aria, 千葉 晶彦
    • Organizer
      日本金属学会2023年(第173回)秋期講演大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 準安定ハイエントロピー合金の熱間加工と組織変化2022

    • Author(s)
      森 真奈美, 山中 謙太, 千葉 晶彦
    • Organizer
      日本塑性加工学会
    • Related Report
      2022 Research-status Report
  • [Presentation] 熱間溝ロール圧延による準安定ハイエントロピー合金の高強度化2022

    • Author(s)
      山中 謙太, 森 真奈美, 吉田和男, 小貫祐介, 佐藤成男, 千葉 晶彦
    • Organizer
      日本塑性加工学会
    • Related Report
      2022 Research-status Report
  • [Presentation] 準安定ハイエントロピー合金の高温変形挙動におけるN添加の影響2022

    • Author(s)
      横須賀 大真, 森 真奈美, 山中 謙太, 千葉 晶彦
    • Organizer
      日本金属学会
    • Related Report
      2022 Research-status Report
  • [Presentation] CoCrFeMnNi系準安定ハイエントロピー合金の熱間加工における組織変化2022

    • Author(s)
      森 真奈美, 横須賀 大真, 山中 謙太, 千葉 晶彦
    • Organizer
      日本金属学会
    • Related Report
      2022 Research-status Report
  • [Presentation] 熱間溝ロール圧延加工とN添加を組み合わせた準安定ハイエントロピー合金の高強度化2022

    • Author(s)
      山中 謙太, 森 真奈美, 吉田 和男, 小貫 祐介, 佐藤 成男, 千葉 晶彦
    • Organizer
      日本金属学会
    • Related Report
      2022 Research-status Report
  • [Presentation] CoCrFeMnNi系準安定ハイエントロピー合金の組織と塑性変形挙動に及ぼすN添加の影響2021

    • Author(s)
      山中 謙太, 森 真奈美, 吉田 和男, 水澤 和大, 小貫 祐介, 佐藤 成男, 千葉 晶彦
    • Organizer
      日本金属学会2021年春期講演大会
    • Related Report
      2020 Research-status Report
  • [Presentation] CoCrFeMnNi系準安定ハイエントロピー合金の相分解・再結晶挙動に及ぼすN添加の影響と機械的特性の変化2021

    • Author(s)
      森 真奈美, 青沼 拓実, 山中 謙太, 吉田 和男, 千葉 晶彦
    • Organizer
      日本金属学会2021年春期講演大会
    • Related Report
      2020 Research-status Report
  • [Presentation] CoCrFeMnNi系準安定ハイエントロピー合金の熱処理における組織と機械的特性の変化2020

    • Author(s)
      青沼 拓実, 森 真奈美, 山中 謙太, 吉田 和男, 千葉 晶彦
    • Organizer
      日本金属学会 2020年秋期講演大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Cu添加した炭化物強化マルテンサイト鋼における耐食性の元素溶出挙動2020

    • Author(s)
      山中 謙太, 森 真奈美, 大村 和世, 小貫 祐介, 佐藤 成男, 千葉 晶彦
    • Organizer
      日本金属学会 2020年秋期講演大会
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2025-01-30  

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