摘要
在Gleeble- 15 0 0热模拟机上对Ti 6Al 2Zr 1Mo 1V钛合金铸态材料进行了恒温和恒应变速率下的热压缩变形实验 ,温度范围是 70 0～ 10 0 0℃ ,应变速率范围是 5× 10 -3 s-1～ 5 0s-1,测试了其真应力 -真应变曲线 ,观察了变形后的组织。结果表明 :合金在不同变形条件下其软化机制分别受动态回复和动态再结晶所控制 。
Hot compressive deformation test of Ti 6Al 2Zr 1Mo 1V titanium alloy were studied by Gleeble 1500 Formaster Press Simulator at constant temperatures and constant strain rates. The ranges of temperature and strain rates were 700～1000℃ and 5×10 -3 s -1 ～50s -1 . The compressive true stress vs true strain curves have been measured and the hot deformation microstructures were observed. The results showed that the softening mechanism was dominated by dynamic recrystallization and dynamic recovery at different condition. The sensitivity exponent of strain rate was increased with raising of deformation temperature.
出处
《航空材料学报》
EI
CAS
CSCD
2001年第1期10-12,共3页
Journal of Aeronautical Materials
