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: Conference 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English
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Published - 2010
イベントMaterials Science and Technology Conference and Exhibition 2010, MS and T'10 - Houston, TX, United States
継続期間: 2010 10月 172010 10月 21

出版物シリーズ

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

Other

OtherMaterials Science and Technology Conference and Exhibition 2010, MS and T'10
国/地域United States
CityHouston, TX
Period10/10/1710/10/21

ASJC Scopus subject areas

  • 材料科学(その他)

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