Healing behavior of hydrogen micro pores during cold plastic deformation

Z. A. Shamsudin, H. Toda, M. Kobayashi, K. Koyama, K. Ichitani, Y. Suzuki, K. Uesugi, M. Nakazawa, Y. Aoki

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

抄録

The healing behaviors of hydrogen micropores in an Al-Mg alloy during cold plastic deformation was observed using X-ray microtomography. Local strain distribution during deformation was determined by measuring the displacement of artificially dispersed Pb particles. Our result shows that under uniform applied compressive load, the local strain distribution in the sample is significantly inhomogeneous which induces complex healing behaviors of micropores during deformation. The shrinking behavior of micropores can be explained as a function of local compressive strain. Some micropores are re-initiated by heating in position identical to those before their annihilation during plastic working even after large strain has been applied after annihilation. There were no apparent effects of local compressive strain on annihilation and re-initiation behaviors. It can be concluded that application of 60% compressive load used in this study is not sufficient enough to heal the micropores completely.

本文言語英語
ホスト出版物のタイトルMaterials Science and Technology Conference and Exhibition 2010, MS and T'10
ページ1031-1036
ページ数6
出版ステータス出版済み - 12 1 2010
外部発表はい
イベントMaterials Science and Technology Conference and Exhibition 2010, MS and T'10 - Houston, TX, 米国
継続期間: 10 17 201010 21 2010

出版物シリーズ

名前Materials Science and Technology Conference and Exhibition 2010, MS and T'10
2

その他

その他Materials Science and Technology Conference and Exhibition 2010, MS and T'10
Country米国
CityHouston, TX
Period10/17/1010/21/10

All Science Journal Classification (ASJC) codes

  • Materials Science (miscellaneous)

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