EBSD and ECCI based assessments of inhomogeneous plastic strain evolution coupled with digital image correlation

Ryohei Kakimoto, Motomichi Koyama, Kaneaki Tsuzaki

研究成果: ジャーナルへの寄稿記事

抜粋

Synopsis: We measured local grain orientation gradient and dislocation density by electron backscatter diffraction (EBSD) measurement and electron channeling contrast imaging (ECCI) to obtain strain maps near a stress concentration source in a pure nickel as a FCC model specimen. In particular, we obtained relationship among grain orientation spread (GOS), dislocation density, and equivalent plastic strain on the specimen surface, which were obtained by EBSD, ECCI, and digital image correlation (DIC), respectively. After obtaining GOS-strain and dislocation density-strain relations, the strain distribution in the specimen interior was also determined by measuring the GOS and dislocation density. Both of the GOS and dislocation density showed a linear correlation, and the dislocation density-strain relation showed a relatively small deviation.

元の言語英語
ページ(範囲)100-108
ページ数9
ジャーナルTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
105
発行部数2
DOI
出版物ステータス出版済み - 2 2019

    フィンガープリント

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

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