ZHAO Jiarong YANG Jie Wuhan Iron and Steel University
,
Wuhan
,
China ZHAO Jiarong
,
associate professor
,
Faculty of Rolling
,
Wuhan Iron and Steel University
,
Wuhan 430081
,
China
金属学报(英文版)
Based on the analyses of hot-deformation mechanism of the steel,a new constitutive equation describing the flow stress of steels was derived.The flow stress data of steel 55SiMnVB have been determined at 900—1200℃,strain rates of 1—100s~(-1)and true-strain of 0.08—0.8.An available evaluated formula on the flows tress has been obtained by means of non-linear regression.It can express clearly the physical process of hot-deformation.
关键词:
flow stress
,
null
,
null
