Quantitative analysis of twinning-induced plasticity (TWIP) in beta-titanium alloy

Xiaohua Min, Xuejiao Chen, Satoshi Emura, Kaneaki Tsuzaki, Koichi Tsuchiya

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

抄録

Work hardening behavior of Ti-15Mo alloy (mass %) was examined through quantitative evaluation of the {332}〈113〉 twinning structural evolution at various plastic strain levels by optical microscope (OM) observations combined with electron backscatter diffraction analyses (EBSD). Based on analyzed images from the optical micrographs, area fraction of twins rapidly increases to 40% at strain of 0.05, and gradually reaches to 52% at strain of 0.12. With further deformation to a strain of 0.17, it has no significant change. The EBSD inverse pole figure maps exhibit that the twins become denser and thicker with increasing strain. A linear relationship is found between true stress and inverse square root of mean free path of dislocations at strain up to 0.12, indicating that the work hardening is mainly dominated by dynamic microstructure refinement induced by the twinning.

本文言語英語
ホスト出版物のタイトル8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8
出版社John Wiley and Sons Inc.
ページ1149-1156
ページ数8
ISBN(印刷版)9781632660008
DOI
出版ステータス出版済み - 1 1 2013
イベント8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8 - Waikoloa, HI, 米国
継続期間: 8 4 20138 9 2013

出版物シリーズ

名前8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8
2

その他

その他8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8
Country米国
CityWaikoloa, HI
Period8/4/138/9/13

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials

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