HYDROGEN EFFECT ON DEFORMATION BEHMIOR OF TITANIUM ALLOY AT HIGH TEMPERATURE

被引：0
|
作者：
C.H.Zhou
K.Yang
D.F.Li
Y.X.Lu
机构：
来源：
Acta Metallurgica Sinica(English Letters) | 1998年 / 03期
关键词：
titanium; hydrogen; thermal deformation;
D O I：
暂无
中图分类号：
TG13 [合金学与各种性质合金];
学科分类号：
080502 ;
摘要：
The effect of hydrogen on the deformation behavior of three typical kinds of titanium alloys, pure Ti, Ti-6Al-4V and Ti-15V-3Cr-3Al-3Sn (Ti-15-3), at high temperature has been investigated by short time creep test. XRD and TEM techniques are used to examine the changes in their microstructures. The results show that deformation rutes of pure Ti and Ti-6Al-4V alloy can be greatly increased by hydorgen charping due to an increase of β phase volume in their microstructures. β→α transformation is found to occur in unchanged Ti-15-3 alloy during creep process. The addition of 0. 73wt% hydrogen can completely inhibit the deformation-induced transformation and strengthen the metastable β phase in Ti-15-3 alloy, resulting in a dramatic decrease of deformation rate of this alloy at 700° C.
引用
收藏
页码：190 / 196
页数：7
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