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Nanoscale Structure Control of Metallic Material Through Electrical Wind Force and Mechanism Clarification

Research Project

Project/Area Number 20K20531
Research Category

Grant-in-Aid for Challenging Research (Pioneering)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 18:Mechanics of materials, production engineering, design engineering, and related fields
Research InstitutionNagoya University

Principal Investigator

JU YANG  名古屋大学, 工学研究科, 教授 (60312609)

Co-Investigator(Kenkyū-buntansha) 徳 悠葵  名古屋大学, 工学研究科, 准教授 (60750180)
木村 康裕  名古屋大学, 工学研究科, 助教 (70803740)
Project Period (FY) 2020-07-30 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥25,740,000 (Direct Cost: ¥19,800,000、Indirect Cost: ¥5,940,000)
Fiscal Year 2022: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2021: ¥7,150,000 (Direct Cost: ¥5,500,000、Indirect Cost: ¥1,650,000)
Fiscal Year 2020: ¥12,480,000 (Direct Cost: ¥9,600,000、Indirect Cost: ¥2,880,000)
Keywords原子配列 / 結晶構造 / 力学特性 / 電子風力 / 金属材料
Outline of Research at the Start

集団的な電子の衝撃力を電子風力として操作することにより金属原子に能動的に作用し、金属材料内原子配列の最適化や転位の移動・消滅などのナノスケール力学制御を実現することを目的としている。これによって、高密度電流による金属材料内の結晶構造、相組織などミクロスケールの組織制御を実現し、これまで両立困難であった金属材料の高強度と高延性や、高強度と高靭性などの力学特性のトレードオフを打破し、高強度、高延性、高靭性を同時に実現できる革新的力学特性を発現させる。さらに、これらの現象を明らかにすることにより、電子風力による金属材料内原子配列の最適化、そして組織制御に関する新しい原理を世界に先駆けて提案する。

Outline of Final Research Achievements

The research aim is to realize nanoscale mechanical control such as optimization of atomic arrangement and dislocation migration and annihilation in metallic materials by introducing high-density electron current into bulk metal alloys and actively acting on metal atoms by manipulating collective electrons impact as electron wind force. This will realize micro-scale microstructural control such as crystal structure and phase structure in metallic materials by high-density current, thereby breaking the trade-off between mechanical properties such as high strength and high ductility, or high strength and high toughness, which have been difficult to achieve. The innovative mechanical properties that can simultaneously realize high strength, high ductility, and high and toughness at the same time will be created. Furthermore, we will propose the method to realize the optimization of atomic arrangement in metallic materials by electron wind force and for the control of crystal structure.

Academic Significance and Societal Importance of the Research Achievements

電子風力による金属材料内組織の制御とメカニズムの解明への挑戦は世界に先駆けた斬新な研究であり、これまで両立困難であった力学特性のトレードオフをブレークスルーし、我が国の産業界に大きな変革をもたらすことにより、国際競争力維持・強化に大いに貢献できる。また、本研究は電子風力を金属内部の原子に意図的に負荷できることに着目し、原子配列の観点から原子移動に起因する転位の移動と消失、結晶構造と方位の変化、相組織の大きさと分布の変化など材料組織の制御手法を確立するとともに、その理論モデルの提案を目標としており、材料力学の学問体系を超え、新しい学理を追求するものであり、学術体系の変革が期待できる。

Report

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

    (26 results)

All 2023 2022 2021 2020

All Journal Article (16 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 16 results,  Open Access: 3 results) Presentation (9 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Influence of a high-density pulsed electric current on the fatigue behaviour of prestrained aluminium alloys2023

    • Author(s)
      Jung Jaewoong、Yoon Sungmin、Gu Shaojie、Kimura Yasuhiro、Toku Yuhki、Ju Yang
    • Journal Title

      Engineering Failure Analysis

      Volume: 150 Pages: 107230-107230

    • DOI

      10.1016/j.engfailanal.2023.107230

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Atom Rearrangement by Cyclic Electron “Shaking”2023

    • Author(s)
      Toku Yuhki、Kizawa Kurama、Kimura Yasuhiro、Ju Yang
    • Journal Title

      Advanced Engineering Materials

      Volume: 1 Issue: 12 Pages: 1-7

    • DOI

      10.1002/adem.202300115

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Efficiency improvement of fatigue crack healing by multiple high-density pulsed electric currents: Application to austenitic stainless steel2023

    • Author(s)
      Yoon Sungmin、Gu Shaojie、Li Shaoli、Kimura Yasuhiro、Toku Yuhki、Ju Yang
    • Journal Title

      Engineering Fracture Mechanics

      Volume: 284 Pages: 109235-109235

    • DOI

      10.1016/j.engfracmech.2023.109235

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Improvement of low-cycle fatigue life of austenitic stainless steel by multiple high-density pulsed electric currents2022

    • Author(s)
      Yoon Sungmin、Cui Yi、Kimura Yasuhiro、Gu Shaojie、Toku Yuhki、Ju Yang
    • Journal Title

      International Journal of Fatigue

      Volume: 156 Pages: 106639-106639

    • DOI

      10.1016/j.ijfatigue.2021.106639

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Rapid anisotropy recovery in deformed FCC metals by high-density pulsed electric current treatment2022

    • Author(s)
      Gu Shaojie、Cui Yi、Yoon Sungmin、Wang Zizheng、Kimura Yasuhiro、Toku Yuhki、Ju Yang
    • Journal Title

      Vacuum

      Volume: 197 Pages: 110855-110855

    • DOI

      10.1016/j.vacuum.2021.110855

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Investigating size dependence in nanovoid-embedded high-entropy-alloy films under biaxial tension2022

    • Author(s)
      Cui Yi、Chen Zengtao、Gu Shaojie、Yang Wenzhi、Ju Yang
    • Journal Title

      Archive of Applied Mechanics

      Volume: - Issue: 1 Pages: 335-353

    • DOI

      10.1007/s00419-021-02100-2

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Evaluation of Electric Current-Induced Improvement of Fracture Characteristics in SUS3162021

    • Author(s)
      Yoon Sungmin、Kimura Yasuhiro、Cui Yi、Toku Yuhki、Ju Yang
    • Journal Title

      MATERIALS TRANSACTIONS

      Volume: 62 Issue: 6 Pages: 748-755

    • DOI

      10.2320/matertrans.MT-M2020333

    • NAID

      130008042828

    • ISSN
      1345-9678, 1347-5320
    • Year and Date
      2021-06-01
    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Assessment of creep behavior using a damage-coupled model for martensitic stainless steel2021

    • Author(s)
      YOON Sungmin、KIMURA Yasuhiro、TOKU Yuhki、JU Yang、PARK Soojeong、KIM Yunhae
    • Journal Title

      Mechanical Engineering Journal

      Volume: 8 Issue: 5 Pages: 21-00178-21-00178

    • DOI

      10.1299/mej.21-00178

    • NAID

      130008104596

    • ISSN
      2187-9745
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Relief of strain hardening in deformed Inconel 718 by high-density pulsed electric current2021

    • Author(s)
      Gu Shaojie、Cui Yi、Kimura Yasuhiro、Toku Yuhki、Ju Yang
    • Journal Title

      Journal of Materials Science

      Volume: 56 Issue: 29 Pages: 16686-16696

    • DOI

      10.1007/s10853-021-06344-9

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Nanotwinning and tensile behavior in cold-welded high-entropy-alloy nanowires2021

    • Author(s)
      Cui Yi、Toku Yuhki、Ju Yang
    • Journal Title

      Nanotechnology

      Volume: 32 Issue: 31 Pages: 315716-315716

    • DOI

      10.1088/1361-6528/abf7eb

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] The deformation mechanism in cold-welded gold nanowires due to dislocation emission2021

    • Author(s)
      Y.Cui, Y.Toku, Y.Kimura and Y.Ju
    • Journal Title

      Computational Materials Science

      Volume: 188 Pages: 110214-110214

    • DOI

      10.1016/j.commatsci.2020.110214

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Preferential growth of specific crystal planes based on the dimension control of single crystal SnO2 nanobelts2021

    • Author(s)
      Y.Toku, Y.Togawa, Y.Morita and Y.Ju
    • Journal Title

      Materials Letters

      Volume: 285 Pages: 129121-129121

    • DOI

      10.1016/j.matlet.2020.129121

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Equilibrium current density balancing two atomic flows in coupled problems of electromigration and thermomigration in unpassivated gold film2020

    • Author(s)
      Y.Kimura and Y.Ju
    • Journal Title

      AIP Advances

      Volume: 10 Issue: 8 Pages: 085125-085125

    • DOI

      10.1063/5.0011417

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Fracture of void-embedded high-entropy-alloy films: A comprehensive atomistic study2020

    • Author(s)
      Y.Cui, Z.Chen and Y.Ju
    • Journal Title

      Materialia

      Volume: 12 Pages: 100790-100790

    • DOI

      10.1016/j.mtla.2020.100790

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] High-strain-rate void growth in high entropy alloys: Suppressed dislocation emission = suppressed void growth2020

    • Author(s)
      Y.Cui, Y.Toku, Y.Kimura and Y.Ju
    • Journal Title

      Scripta Materialia

      Volume: 185 Pages: 12-18

    • DOI

      10.1016/j.scriptamat.2020.03.056

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] True origin of the size effect in cold-welded metallic nanocrystals2020

    • Author(s)
      Y.Cui, Y.Toku, Y.Kimura and Y.Ju
    • Journal Title

      International Journal of Mechanical Sciences

      Volume: 187 Pages: 106102-106102

    • DOI

      10.1016/j.ijmecsci.2020.106102

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] Enhancement of Mechanical Properties of Ti-6Al-4V through High-Density Pulsed Electric-Current2022

    • Author(s)
      R. Iwase, S. Gu, Y. Kimura, Y. Toku, Y. Ju
    • Organizer
      3rd International Conference on Materials Science & Engineering
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 高周波電流を利用した Ti-6Al-4V の機械的性質向上に関する研究2022

    • Author(s)
      堀田 一馬, 木村 康裕, 徳 悠葵, 巨 陽
    • Organizer
      日本機械学会 M&M2022材料力学カンファレンス
    • Related Report
      2022 Annual Research Report
  • [Presentation] Ti-6Al-4V における電流印加による転位挙動の動的観察2022

    • Author(s)
      礒井 宙, 木村 康裕, 徳 悠葵, 巨 陽
    • Organizer
      日本機械学会 M&M2022材料力学カンファレンス
    • Related Report
      2022 Annual Research Report
  • [Presentation] 高密度パルス電流が無酸素銅の結晶組織に及ぼす影響2022

    • Author(s)
      岩永 和樹, 木村 康裕, 徳 悠葵, 巨 陽
    • Organizer
      2022年度日本機械学会年次大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 高周波電流を利用した金属薄膜内原子配列の高秩序化に関する研究2021

    • Author(s)
      安田 和弘、木村 康裕、 徳 悠葵、巨 陽
    • Organizer
      日本機械学会 M&M2021材料力学カンファレンス
    • Related Report
      2021 Research-status Report
  • [Presentation] 高密度パルス電流による予ひずみを有するインコネル718 の加工硬化の緩和2021

    • Author(s)
      Gu Shaojie、 Cui Yi、Kimura Yasuhiro、Toku Yuhki、Ju Yang
    • Organizer
      日本機械学会 M&M2021材料力学カンファレンス
    • Related Report
      2021 Research-status Report
  • [Presentation] 高周波電流による薄膜密着強度の向上に関する研究2021

    • Author(s)
      彭 彦鴻、木村 康裕、徳 悠葵、巨 陽
    • Organizer
      日本機械学会 M&M2021材料力学カンファレンス
    • Related Report
      2021 Research-status Report
  • [Presentation] 高密度パルス電流による純チタン結晶組織への影響2021

    • Author(s)
      丸本 裕貴、 木村 康裕、徳 悠葵、巨 陽
    • Organizer
      日本機械学会 M&M2021材料力学カンファレンス
    • Related Report
      2021 Research-status Report
  • [Presentation] Fatigue damage recovery of austenitic stainless steel by high-density pulsed electric current2021

    • Author(s)
      Yoon Sungmin、Ju Yang、Kimura Yasuhiro、Toku Yuhki
    • Organizer
      日本金属学会 2021年秋期(第169回)講演大会
    • Related Report
      2021 Research-status Report
  • [Patent(Industrial Property Rights)] 金属の機械特性向上方法2022

    • Inventor(s)
      巨 陽、丸本 裕貴、顧 少杰、尹 盛文、岩瀬 累
    • Industrial Property Rights Holder
      巨 陽、丸本 裕貴、顧 少杰、尹 盛文、岩瀬 累
    • Industrial Property Rights Type
      特許
    • Filing Date
      2022
    • Related Report
      2021 Research-status Report

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Published: 2020-08-03   Modified: 2024-01-30  

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