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Phonon viscous resistance dependence of dislocation formation and growth under shock wave induced plastic fracture

Research Project

Project/Area Number 21H01677
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 InstitutionJapan Synchrotron Radiation Research Institute

Principal Investigator

Ichiyanagi Kouhei  公益財団法人高輝度光科学研究センター, 回折・散乱推進室, 研究員 (70435618)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2023: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2022: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2021: ¥13,130,000 (Direct Cost: ¥10,100,000、Indirect Cost: ¥3,030,000)
Keywords衝撃高圧 / 衝撃破壊 / 量子ビーム
Outline of Research at the Start

指向性の高い放射光X線パルスに対してX線集光系を用いることでX線パルスの集光時における発散角を利用したシングルショット型角度分散型時間分解X回折測定法を開発する。このX線パルスを用いたその場計X線回折測法は、通常の放射光を用いたX線回折測定で必要な角度スキャンをせずに1パルスでX線回折測定が可能になる。このシングルショット型角度分散X線回折法によりレーザー衝撃波伝搬下における金属材料の衝撃破壊の転位生成・成長過程を明らかにし、低い歪み速度における破壊メカニズムと異なる衝撃波伝搬下における転位生成・成長のフォノン粘性抵抗因子の基礎理論を構築する。

Outline of Final Research Achievements

The mechanism of material fracture by shock waves is extremely difficult to quantify, including in-situ measurements, because it is a fast and discontinuous phenomenon occurring inside shock waves propagating at the speed of sound. In this study, time-resolved X-ray diffraction measurements were used to observe the plastic fracture mechanism of single crystals under shock compression, and time-resolved Laue diffraction measurements and angle-dispersive time-resolved X-ray diffraction measurements were constructed to simultaneously measure the shock wave propagation direction and the crystal lattice plane perpendicular to the shock wave propagation direction for Si[001] single crystals. Direct observation of the lattice response during plastic fracture of Si[001] single crystals was successfully achieved by applying shock compression at high strains above the elastic limit.

Translated with www.DeepL.com/Translator (free version)

Academic Significance and Societal Importance of the Research Achievements

本研究は、社会生活における安全な生活を送るための材料評価法およびその衝撃破壊の物理的なメカニズムの解明を目的として行った。特に、衝撃波による破壊現象は、身近にあるなかで発生した場合、人体および社会生活に大きな影響を及ぼす現象である。放射光のX線パルスにより、その場観察から高速破壊現象を定量化することで安心・安全な社会生活の構築を目指す研究である。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (6 results)

All 2024 2023 2022 2021

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

  • [Journal Article] In situ observation of the phase transformation kinetics of bismuth during shock release2024

    • Author(s)
      Jiangtao Li, Qiannan Wang, Liang Xu, Lei Liu, Hang Zhang, Sota Takagi, Kouhei Ichiyanagi, Ryo Fukaya, Shunsuke Nozawa, Jianbo Hu
    • Journal Title

      Chinese Physics B

      Volume: 33 Issue: 4 Pages: 046401-046401

    • DOI

      10.1088/1674-1056/ad0ec6

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Visualization of transformation toughening of zirconia ceramics during dynamic fracture2021

    • Author(s)
      Takagi Sota、Inukai Koji、Kawai Nobuaki、Nozawa Shunsuke、Kyono Atsushi、Fukaya Ryo、Adachi Shin-ichi、Ichiyanagi Kouhei
    • Journal Title

      Applied Physics Letters

      Volume: 118 Issue: 23 Pages: 231901-231901

    • DOI

      10.1063/5.0044607

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] 時間分解X線回折法を使った衝撃波による金属組織微細化過程の直接観測2024

    • Author(s)
      一柳光平
    • Organizer
      CIQuS研究会「マルチプローブ、マルチスケールで見る金属材料の破壊メカニズム」
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Evolution of phase transitions in yttria (Y2O3) ceramics induced by nanosecond shock loading2023

    • Author(s)
      H. Kishimura, S. Takagi, N. Kawai, K. Ichiyanagi
    • Organizer
      23rd Biennial Conference of the APS Topical Group on Shock Compression of Condensed Matter
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] High-pressure phase transition of magnesium fluoride under shock compression2023

    • Author(s)
      Kawai, Nobuaki, Takagi, Sota, Tracy, Sally, Kobayashi, Takamichi, Ichiyanagi, Kouhei
    • Organizer
      APS Topical Conference on the Shock Compression of Matter 2022
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 放射光X線パルスを使った時間分解X線回折測定による衝撃波伝搬下の物質構造ダイナミクス研究2022

    • Author(s)
      一柳光平、髙木壮大、川合信明、深谷亮、野澤俊介
    • Organizer
      2022年度衝撃波シンポジウム
    • Related Report
      2022 Annual Research Report
    • Invited

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Published: 2021-04-28   Modified: 2025-01-30  

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