期刊
MATERIALS SCIENCE AND TECHNOLOGY
卷 16, 期 7-8, 页码 897-902出版社
INST MATERIALS
DOI: 10.1179/026708300101508658
关键词
-
The hot deformation behaviour of a 20 vol.-%SiC particle reinforced ill alloy 6061 composite and Al alloy 6061, made via a powder metallurgy (PM) route and treated by a T4 temper, mere studied by compression testing over a range of temperatures (300 - 500 degrees C) and at strain rates of 0(.)005, 0(.)05, and 0(.)09 s(-1). It was observed that the how stresses of the composites were significantly higher than those of the alloy at lower deformation temperatures. However, the stress-strain curves of both the composite and the alloy showed significant softening during deformation at the lo,vest strain rate, the softening for the composite being faster than that of the alloy, The activation energy for hot deformation was determined for different strains, using a power law equation, and was found to change significantly with strain for both the alloy and the composite. This phenomenon was explained by the occurrence of dynamic precipitation and coarsening during deformation. MST/4641.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据