Low cycle fatigue improvement of powder metallurgy titanium alloy through thermomechanical treatment

被引：0
|
作者：
刘彬 [1 ]
刘咏 [1 ]
何小禹 [1 ]
汤慧萍 [2 ]
陈丽芳 [1 ]
机构：
[1] State Key Laboratory of Powder Metallurgy, Central South University
[2] State Key Laboratory of Porous Materials Technology
来源：
Transactions of Nonferrous Metals Society of China | 2008年 / 02期
关键词：
titanium alloy; powder metallurgy; low cycle fatigue; thermomechanical treatment;
D O I：
暂无
中图分类号：
TG146.23 [];
学科分类号：
080502 ;
摘要：
A low-cost β type Ti-1.5Fe-6.8Mo-4.8Al-1.2Nd (mass fraction, %)(T12LCC) alloy was produced by blended elemental powder metallurgy(P/M) method and subsequent thermomechanical treatment. Low cycle fatigue(LCF) behavior of P/M T12LCC alloy before and after thermomechanical treatment was studied. The results show that the LCF resistance of P/M titanium alloy is significantly enhanced through the thermomechanical treatment. The mechanisms for the improvement of LCF behavior are attributed to the elimination of residual pores, the microstructure refining and homogenization.
引用
收藏
页码：227 / 232
页数：6
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