Hot deformation behavior of the 30%Mo/Cu-Al2O3 composite prepared by vacuum hot-pressed sintering

被引：0
|
作者：
Liu, Yong [1 ]
Sun, Yongwei [1 ]
Tian, Baohong [1 ]
Feng, Jiang [1 ]
Zhang, Yi [1 ]
机构：
[1] Henan Univ Sci & Technol, Sch Mat Sci & Engn, Luoyang 471003, Peoples R China
来源：
MATERIALS AND COMPUTATIONAL MECHANICS, PTS 1-3 | 2012年 / 117-119卷
关键词：
30%Mo/Cu-Al2O3 composite; hot deformation; flow stress; constitutive equation;
D O I：
10.4028/www.scientific.net/AMM.117-119.893
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Hot deformation behavior of the 30%Mo/Cu-Al2O3 composite was investigated by hot compression tests on Gleeble-1500D thermal simulator in the temperature ranges of 450 similar to 750 degrees C and the strain rate ranges of 0.01 similar to 5s(-1), as the total strain is 0.7. The results show that the peak stress increases with the decreased deformation temperature or the increased strain rate. Based on the true stress-strain curves, the established constitutive equation represents the high-temperature flow behavior of the composite, and the calculated flow stresses are in good agreement with the high-temperature deformation experimental results.
引用
收藏
页码：893 / 896
页数：4
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