Three-dimensional visualization and analysis of grain deformation by means of synchrotron radiation

Masakazu Kobayashi, Hiroyuki Toda, Kentaro Uesugi

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

The new method to investigate and visualize a strain distribution at individual grains in three-dimensional has been developed based on synchrotron radiation X-ray tomography. The tensile specimen made of a heat-treated 2024 aluminum alloy to coarse precipitate particles has repeatedly scanned by the high-resolution X-ray tomography with applying a loading just before fracture would occur. Grain boundaries in the specimen were visualized by the tomographic scan after gallium application in order to detect grain regions in three-dimensional. Total 17 grains were found by 2D and 3D image processing and were provided with strain analysis by means of the microstructural features tracking. The actual strain development on a grain was visually demonstrated during tensile deformation. The strain map on a cross section of the grain shows inhomogeneous distribution. In the vicinity of grain boundary, the partly large strain is observed. The strain distribution within a grain seems to be affected by neighbor grains. The different evolution of strain distribution was also confirmed in the two grains while the grains were deformed almost equivalently on an average. The difference of deformation microstructure depending on grain orientation is suggested.

本文言語英語
ホスト出版物のタイトルTHERMEC 2009
ページ2523-2528
ページ数6
DOI
出版ステータス出版済み - 2 9 2010
外部発表はい
イベント6th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2009 - Berlin, ドイツ
継続期間: 8 25 20098 29 2009

出版物シリーズ

名前Materials Science Forum
638-642
ISSN(印刷版)0255-5476

その他

その他6th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2009
国/地域ドイツ
CityBerlin
Period8/25/098/29/09

All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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