Modeling the flow behavior or a medium carbon microalloyed steel under hot working conditions

被引：172
|
作者：
Cabrera, JM [1 ]
AlOmar, A [1 ]
Jonas, JJ [1 ]
Prado, JM [1 ]
机构：
[1] MCGILL UNIV,DEPT MIN & MET ENGN,MONTREAL,PQ H3A 2B2,CANADA
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 1997年 / 28卷 / 11期
关键词：
D O I：
10.1007/s11661-997-0181-8
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The constitutive equations for the flow behavior of a commercial 0.34 pct C-1.5 pet Mn-0.7 pet Si-0.083 pet V-0.018 pet Ti microalloyed steel were determined. For this purpose, uniaxial hot compression tests were carried out over a wide range of strain rates (10(-4) to 10 s(-1)) and temperatures (1123 to 1423 K). In combination with models developed in the literature, the experimental results permit the flow stress of the present steel to be predicted within +/-5 pet. It is shown that the classical constitutive equations must be modified to take the grain size into account, particularly when the latter is below 30 mu m.
引用
收藏
页码：2233 / 2244
页数：12
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