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

被引：1
|
作者：
MA Xiqun a
机构：
来源：
RareMetals | 2012年 / 31卷 / 04期
基金：
国家高技术研究发展计划(863计划);
关键词：
titanium alloys; metastable phases; martensitic phase transformation; deformation;
D O I：
暂无
中图分类号：
TG131 [合金学理论];
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：5
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