Effects of temperature and alloying content on the phase transformation and {10(1)over-bar1} twinning in Zr during rolling

被引：28

作者：

An, Xinglong ^{[1
]}

Zhang, Hao ^{[1
]}

Ni, Song ^{[1
]}

Ou, Xiaoqin ^{[1
]}

Liao, Xiaozhou ^{[2
]}

Song, Min ^{[1
]}

机构：

[1] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Peoples R China

[2] Univ Sydney, Sch Aerosp Mech & Mechatron Engn, Sydney, NSW 2006, Australia

来源：

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY | 2020年 / 41卷

基金：

澳大利亚研究理事会;

关键词：

Zr; Zr-Ti alloy; Twinning; Phase transformation; Stacking fault energy; PURE ZIRCONIUM; STRAIN-RATE; DEFORMATION; MICROSTRUCTURE; EVOLUTION; BEHAVIOR; TWINS; TRANSITION; BOUNDARIES; SELECTION;

D O I：

10.1016/j.jmst.2019.09.022

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effects of temperature and Ti content on the deformation mechanisms of pure Zr and Zr-Ti alloys were investigated by transmission electron microscopy. The results indicate the existence of a relation between deformation-induced phase transformation from a hexagonal close-packed structure to a face-centered cubic structure and {10 (1) over bar1} deformation twinning. That is, when one is suppressed, the other will be promoted. The phase transformation was suppressed while the {10 (1) over bar1} compressive twinning was promoted with increasing the rolling temperature and/or Ti content. This can be attributed to the activation of basal <a> dislocations at high temperature and the increased stacking fault energy with Ti content. (C) 2019 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.

引用

页码：76 / 80

页数：5

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