Synchrotron High-Energy X-ray & Neutron Diffraction, and Laser-Scanning Confocal Microscopy : In-Situ Characterization Techniques for Bulk Nanocrystalline Metals

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  • Kawasaki Megumi
    School of Mechanical, Industrial and Manufacturing Engineering, Oregon State University
  • Han Jae-Kyung
    School of Mechanical, Industrial and Manufacturing Engineering, Oregon State University
  • Liu Xiaojing
    Department of Materials Science and Engineering, Technion – Israel Institute of Technology Materials Science and Engineering Department, and Guangdong Provincial Key Laboratory of Materials and Technologies for Energy Conversion, Guangdong Technion – Israel Institute of Technology
  • Moon Suk-Chun
    School of Mechanical, Materials, Mechatronic and Biomedical Engineering, University of Wollongong
  • Liss Klaus-Dieter
    School of Mechanical, Materials, Mechatronic and Biomedical Engineering, University of Wollongong

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タイトル別名
  • Synchrotron High-Energy X-ray & Neutron Diffraction, and Laser-Scanning Confocal Microscopy: <i>In-Situ</i> Characterization Techniques for Bulk Nanocrystalline Metals

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説明

<p>This report is aimed at giving an overview of the significance of the novel and innovative microstructural and microscopic characterization techniques for bulk nanostructured metals processed by severe plastic deformation, specifically high-pressure torsion (HPT). In practice, the microstructural relaxation behavior upon heating of nanostructured 316L stainless steel and CoCrFeNi high-entropy alloy was characterized by in-situ heating neutron diffraction measurements; the heterogeneous phase distribution of an HPT-bonded hetero-nanostructured Al–Mg alloy was examined using synchrotron high-energy X-ray diffraction; and the microstructural evolution upon heating of a nanostructured CoCrFeNiMn high-entropy alloy was examined by laser-scanning confocal microscopy. These novel techniques are complementary to each other and any other in- or ex-situ testing methods, especially when nanocrystalline metals are transforming microstructurally and compositionally with temperature and time in a hierarchical manner. The outcomes of the studies emphasize the importance of the methodologies and the development of characterization techniques for further in-depth exploration in the research field of severe plastic deformation.</p>

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  • MATERIALS TRANSACTIONS

    MATERIALS TRANSACTIONS 64 (8), 1683-1694, 2023-08-01

    公益社団法人 日本金属学会

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