Low Temperature Superplasticity of 40Cr Steel

被引:0
|
作者
XU Xiao-jing [1 ]
SHI Lian-jie [1 ]
机构
[1] Jiangsu University
关键词
superplasticity; 40Cr; steel; low temperature; microstructure;
D O I
10.13228/j.boyuan.issn1006-706x.2004.04.012
中图分类号
TG142.1 [钢的组织与性能];
学科分类号
摘要
The low temperature superplastic characteristics of commercial 40 Cr steel,which was subjected to water quenching three times and subsequent high temperature tempering,were investigated.The results show that the 40 Cr steel has a grain size of 5-10μm,and exhibits an elongation of 254 %,a flow stress of 108.1 MPa,a strain rate sensitivity m-value of 0.221 at the temperature of 650 ℃ and the initial strain rate of 3.16×10-4 s-1.
引用
收藏
页码:56 / 58
页数:3
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