摘要
采用等温压缩法对Zn-0.8Cu-0.3Ti合金的高温流变行为进行了研究,得到其在变形温度为210～300℃、应变速率为0.01～10.00 s^-1条件下的流动真应力-应变曲线和微观组织。结果表明,Zn-0.8Cu-0.3Ti合金在高温压缩变形条件下,合金的流变应力随着应变速率的减小或变形温度的增大而增大。在热变形过程中合金的微观组织由ε相、TiZn15相和η相构成,且在热变形过程中存在动态再结晶。
High temperature deformation of Zn-0.8Cu-0.15Ti alloy was performed within a temperature range of 230～380 ℃ and a strain rate range of 0.01-10.00 s^-1, and the true stress-strain curves and the microstructures were obtained. The results show that flow stress of Zn-0,8Cu-0.15Ti alloy increases with the decrease of strain rate and the increase of deforming temperature. The microstructure of the alloy is composed of e, TiZnl5 and η phases, and there is recrystallization during hot deformation.
出处
《铸造技术》
CAS
北大核心
2014年第6期1144-1147,共4页
Foundry Technology
