摘要
采用应变速率循环法研究了TA15合金的超塑性。在变形温度分别为850、900、950℃,应变速率范围为1×10-5s-1～1×10-3s-1的试验条件下,讨论了工艺参数对流变应力、m值及其超塑性的影响。结果表明,TA15合金具有较好的超塑性,最佳变形温度为900℃,伸长率为412%。
The superplasficity of TAI5 alloy was studied by the SRC method, the temperature is 850,900,950 ℃ respectively, and the strain rate range 1 × 10^-5s^-1-1 × 10^-3 s^-1. The influence of processing parameters on the flow stress and strain rate sensitivity （m value） and its superplasticity was studied. The results show that TA15 alloy have good superplasticity, the best deformation temperature is 900 ℃, and its elongation reaches 412% under this experiment condition.
出处
《热加工工艺》
CSCD
北大核心
2008年第11期43-45,48,共4页
Hot Working Technology
基金
航空科学基金资助项目(BA2005801127)
关键词
应变速率循环
TA15
高温拉伸
超塑性
应变速率敏感性指数(m值)
strain rate cycling （SRC）
TA15 alloy
high temperature drawing
superplasticity
strain rate sensitivity （m value）
