Hierarchical 332 twinning in a metastable β Ti-alloy showing tolerance to strain localization
Name
Hierarchical 332 113 twinning in a metastable Ti alloy showing tolerance to strain localization.pdf
Description
Published version
Size
2.46 MB
Format
Adobe PDF
Checksum (MD5)
38720adf53dd141f4a99d54530081fef
Author(s)
Zhang, Jinyong
Fu, Yangyang
Wu, Yijin
Qian, Bingnan
Chen, Zheng
Inoue, Akihisa
Wu, Yuan
Yang, Yang
Sun, Fan
Li, Ju
Date Issued
2020
Journal
Materials Research Letters
Publisher
Informa UK Limited
Version
Final published version
Abstract
© 2020, © 2020 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. A hierarchical {332}<113> 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 εmax=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.
MIT Department
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Terms of Use
Creative Commons Attribution 4.0 International license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1080/21663831.2020.1745920
