Study on hot compression deformation of Mg-3.5Zn-0.6Y-0.5Zr alloy
The hot compression of Mg-3.5Zn-0.6Y-0.5Zr alloy was performed on a Gleeble 1500D thermal simulator at the temperature ranges of 300-450 ℃ and the strain rate ranges of 0.002-1 s-1 under deformation degree 50％. The relationship between strain rate and deformation temperature was analysed. The activation energy and stress exponent were calculated, and the constitutive equation was established. The results show that the true stress increases with increase in strain rate and decreases in deformation temperature during the hot compression process of Mg-3.5Zn-0.6Y-0.5Zr alloy. The flow stress of the alloy can be described by a hyperbolic sine function.
Mg-3.5Zn-0.6Y-0.5Zr alloy flow stress true stress-strain curves constitutive equation
Ren Fengzhang Gao qiuran Zhu Yaomin Su Juanhua Tian Baohong
School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471023, China
国际会议
北京
英文
930-933
2012-10-23（万方平台首次上网日期，不代表论文的发表时间）