{332}⟨113⟩ Twinning transfer behavior and its effect on the twin shape in a beta-type Ti-23.1Nb-2.0Zr-1.0O alloy

被引：12

作者：

Yang, Yi ^{[1
]}

Zhang, Bohua ^{[1
]}

Meng, Zhichao ^{[2
]}

Qu, Lei ^{[3
]}

Wang, Hao ^{[1
]}

Cao, Sheng ^{[4
]}

Hu, Jianan ^{[1
]}

Chen, Hao ^{[1
]}

Wu, Songquan ^{[1
]}

Ping, Dehai ^{[5
]}

Li, Geping ^{[2
]}

Zhang, Lai-Chang ^{[6
]}

Yang, Rui ^{[2
]}

Huang, Aijun ^{[7
]}

机构：

[1] Univ Shanghai Sci & Technol, Sch Mat Sci & Engn, Shanghai 200093, Peoples R China

[2] Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China

[3] Northwest Inst Nonferrous Met Res, Xian 710016, Peoples R China

[4] Univ Manchester, Sch Mat, Oxford Rd, Manchester M13 9PL, Lancs, England

[5] Natl Inst Mat Sci, Sengen 1-2-1, Tsukuba, Ibaraki 3050047, Japan

[6] Edith Cowan Univ, Sch Engn, 270 Joondalup Dr, Perth, WA 6027, Australia

[7] Monash Univ, Dept Mat Sci & Engn, Clayton, Vic 3800, Australia

来源：

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY | 2021年 / 91卷

关键词：

Titanium alloys; Plastic deformation; Grain boundaries; Twinning; Twin shape; HIGH-YIELD STRENGTH; INDUCED PLASTICITY; GRAIN-BOUNDARIES; DEFORMATION MECHANISMS; TITANIUM ALLOY; TRANSMISSION; EVOLUTION; SELECTION;

D O I：

10.1016/j.jmst.2021.03.015

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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 beta-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. (C) 2021 Published by Elsevier Ltd on behalf of Chinese Society for Metals.

引用

页码：58 / 66

页数：9