汽车用Zn-0.8Cu-0.15Ti合金的高温变形性研究  

Research on High Temperature Deformation of Zn-0.8Cu-0.15Ti Alloy

作　　者：谷鹏[1] 陈海燕[1] 

机构地区：[1]河南职业技术学院,河南郑州450046

出　　处：《铸造技术》2014年第6期1144-1147,共4页Foundry Technology

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.

关 键 词：Zn-0.8Cu-0.3Ti合金 高温变形 流变应力 动态再结晶 

分 类 号：TG146.13[一般工业技术—材料科学与工程]