In situ scanning electron microscopy observation of deformation and fracture behavior of Ti-3Zr-2Sn-3Mo-25Nb alloy

被引：0
|
作者：
Xiqun Ma
Zhentao Yu
Yong Han
Xiping Song
Qiaoyan Sun
机构：
[1] Northwest Institute for Nonferrous Metal Research,State Key Laboratory for Mechanical Behavior of Materials
[2] Xi’an Jiaotong University,State Key Laboratory for Advanced Metals and Materials
[3] University of Science and Technology Beijing,undefined
来源：
Rare Metals | 2012年 / 31卷
关键词：
titanium alloys; metastable phases; martensitic phase transformation; deformation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The plastic deformation and fracture processes of Ti-3Zr-2Sn-3Mo-25Nb alloy for surgical implants were directly observed by in situ scanning electron microscopy (SEM). The effect of phase transformations on deformation-induced martensitic transformation accompanying the cyclic tensile fracture processes was investigated. The results reveal that the metastable alpha martensites (α″) promotes deformation-induced martensitic transformation to ductile fracture, whereas the omega (ω) and alpha (α) phases drastically prevent slip dislocation and deformation-induced martensitic transformation to brittle fracture.
引用
收藏
页码：318 / 322
页数：4
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