Journal
MATERIALS RESEARCH LETTERS
Volume 8, Issue 7, Pages 247-253Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/21663831.2020.1745920
Keywords
Beta TWIP Ti-alloy; hierarchical deformation twinning; tensile ductility
Categories
Funding
- National Natural Science Foundation of China [51601216, 51771226]
- China Postdoctoral Science Foundation [2018M632414]
- Fund of State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University [20182008]
- Fund of State Key Lab of Advanced Metals and Materials, University of Science and Technology Beijing [2019-ZD03]
- Funds of IndustryUniversity-Research Cooperation in Jiangsu Province [BY2018075]
- Fund of Graduate Education and Teaching Reform of CUMT [2019YJSJG061]
Ask authors/readers for more resources
A hierarchical {332} twinning system is studied in a metastable beta Ti-12Mo-10Zr (wt%) alloy, which shows strong twinning-induced plasticity (TWIP) effect due to a three-level twinning mechanism. In-situ digital image correlation (DIC) indicates a good tolerance to strain localization until epsilon(max) = 0.4 thanks to TWIP hardening effect. The local shear misfit due to the intersection between the matrix slip bands and the primary twin boundaries is accommodated by the formation of secondary and tertiary sub-twinning structures. The strain accommodation postpones crack nucleation at the slip-twin intersections, contributing to the high tolerance of the strain localization.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available
Share Paper
