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

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publication8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8
PublisherJohn Wiley and Sons Inc.
Pages1149-1156
Number of pages8
ISBN (Print)9781632660008
DOIs
Publication statusPublished - Jan 1 2013
Event8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8 - Waikoloa, HI, United States
Duration: Aug 4 2013Aug 9 2013

Publication series

Name8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8
Volume2

Other

Other8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8
CountryUnited States
CityWaikoloa, HI
Period8/4/138/9/13

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials

Fingerprint Dive into the research topics of 'Quantitative analysis of twinning-induced plasticity (TWIP) in beta-titanium alloy'. Together they form a unique fingerprint.

Cite this