所属单位：机电学院
发表刊物：Xiyou Jinshu Cailiao Yu Gongcheng
摘要：In order to study the flow behavior of TA32 titanium alloy, a constitutive model was set up at high temperature. A tensile experiment was carried out at temperatures of 650~850℃ and strain rates of 0.1~0.0001 s-1. The result indicates that the TA32 titanium alloy maintains a relatively good comprehensive performance at high temperature. Work hardening and dynamic recovery are exhibited in the tensile process in the temperature range of 650~750℃ and low strain rate range of 10-1~10-3 s-1. However, the elongation of TA32 increases enormously and strength decreases clearly as the temperature rises to 800℃; at the mean time, a steady stage of stress occurs. The constitutive model of Arrhenius-type was constructed by a specific correction method based on statistics and regularization. The comparison shows a more accurate flow predicted stress through the modified model compared to the conventional least squares model. © 2019, Science Press. All right reserved.
ISSN号：1002-185X
是否译文：否
发表时间：2019-03-01
合写作者：Chen, Can,谢兰生,Gong, Zonghui
通讯作者：陈明和
发表时间：2019-03-01