Development of 3d deformation analysis method in polycrystalline metal by combining synchrotron radiation tomography with X-Ray diffraction

Masakazu Kobayashi, Yoshikazu Ohkawa, Hiroyuki Toda, Kentaro Uesugi, Yoshio Suzuki, Akihisa Takeuchi

研究成果: ジャーナルへの寄稿学術誌査読

1 被引用数 (Scopus)

抄録

The aim of this study was to establish a novel orientation analysis method that utilizes accurate grain position information, obtained by grain boundary tracking, to enable crystal-plasticity deformation analysis of polycrystalline metals. An experiment combining X-ray tomography and X-ray diffraction was performed, and the feasibility of the method was assessed by confirming the relation between diffraction spots and grains whose position was obtained by grain boundary tracking. Although some deviations were observed in diffraction spot intensity, owing to lack of beam stability and the extinction effect, several combinations of grain and spot features showed a high correlation. Furthermore, the diffraction spots originating from grains whose position was detected using grain boundary tracking showed higher correlation coefficients than those originating from grains whose position was detected using 3DXRD. In the case of the former grains, we could easily identify diffraction spots originating from specific grains by focusing on sets of grain and spot features having a high correlation. It was demonstrated that setting appropriate tolerance level enabled highly accurate orientation analysis, almost equivalent to that of 3DXRD.

本文言語英語
ページ(範囲)375-384
ページ数10
ジャーナルNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
77
9
DOI
出版ステータス出版済み - 9月 2013
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 凝縮系物理学
  • 材料力学
  • 金属および合金
  • 材料化学

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