High temperature creep behavior of Ti40 alloys

被引：0

作者：

Wang, MM ^{[2
]}

Zhao, YQ

Zhou, LA

机构：

[1] Northeastern Univ, Shenyang 110006, Peoples R China

[2] NW Inst Nonferrous Met Res, Xian, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2003年 / 32卷 / 02期

关键词：

steady creep; stress exponent; creep activation energy; steady creep rate; strengthening mechanism;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The high temperature creep behavior of Ti40 alloy was studied. The steady creep rate, the stress exponent and the apparent creep activation energy Q, were calculated in the temperature range of 460degreesC similar to 540degreesC and at different stresses. The value of Q is 94.0kJ/mol. On this basis the creep strengthening mechanism was also studied. The creep behavior of Ti40 alloy in the range of 460degreesC similar to 540degreesC is controlled by double mechanisms of dislocation and diffusion. The boundary slip also has some contribution to creep. Its creep property at 620degreesC is not good at present experimental conditions.

引用

页码：117 / 120

页数：4