{332} < 113 > Twinning transfer behavior and its effect on the twin shape in a beta-type Ti-23.1Nb-2.0Zr-1.0O alloy
Authors/Creators
Yi Yang
Bohua Zhang
Zhichao Meng
Lei Qu
Hao Wang
Sheng Cao
Jianan Hu
Hao Chen
Songquan Wu
Dehai Ping
Geping Li
Lai-Chang Zhang, Edith Cowan UniversityFollow
Rui Yang
Aijun Huang
Abstract
The interaction between twins and grain boundaries (GB) has an important influence on the deformation and fracture behavior of materials. In the present work, {332} < 113 > twinning transfer (TT) behavior and its effect on the twin shape in a deformed β-type Ti-23.1Nb-2.0Zr-1.0O Ti alloy were investigated experimentally and with molecular dynamics simulation. The crystallographic alignment factor of the two twinning systems in the neighboring grains and the misorientation angle of the grain pairs were found to influence the occurrence of TT. This further determines the twin shape: twins present a ruler shape when TT occurs but are in a lenticular shape otherwise. Such different twin shapes are attributed to the local stress states related to TT occurring or not. Both ruler-shaped paired twinning and lenticular twinning would provide effective mechanisms to release or reduce the stress concentration in front of the twin tips in different grain pairs.
RAS ID
35909
Document Type
Journal Article
Date of Publication
2021
Volume
91
Funding Information
University of Shanghai for Science and Technology Chinese Academy of Sciences
School
School of Engineering
Copyright
subscription content
Publisher
Elsevier
Comments
Yang, Y., Zhang, B., Meng, Z., Qu, L., Wang, H., Cao, S., ... Huang, A. (2021). {332} < 113 > Twinning transfer behavior and its effect on the twin shape in a beta-type Ti-23.1 Nb-2.0 Zr-1.0 O alloy. Journal of Materials Science & Technology, 91, 58-66. https://doi.org/10.1016/j.jmst.2021.03.015