Prediction of the flow stress of A16061 at hot deformation conditions

被引：28
|
作者：
Gan Chunlei [1 ]
Xue Yongdong [2 ]
Wang Mengjun [3 ]
机构：
[1] Univ Sci & Technol Beijing, Inst Adv Mat & Technol, Beijing 100083, Peoples R China
[2] CITIC Heavy Ind Co LTD, Luoyang 471039, Peoples R China
[3] Cent S Univ, Minist Educ, Key Lab Nonferrous Met Mat Sci & Engn, Changsha 410083, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2011年 / 528卷 / 12期
关键词：
A16061; Constitutive equation; Flow stress; Hot compression; STRAIN-RATE; BEHAVIOR; WORKING; STEEL;
D O I：
10.1016/j.msea.2011.02.004
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Isothermal compression tests were carried out on A16061 using a Gleeble-1500 thermal simulator at temperatures ranging from 573 to 723 K and strain rates from 0.5 to 30 s(-1). The flow stress of A16061 was characterized based on an analysis of the true stress-true strain curves. A mathematical mode coupling flow stress with strain, strain rate and temperature for A16061 has been proposed by using a hyperbolic sinusoidal type equation. The material constant a is 0.01 MPa-1 n the model, whereas other material constants n, InA and Q are found to be functions of strain. The predicted results from this proposed model are found to be in good agreement with the experimental flow stress curves which can be used to predict the required deformation forces in hot deformation processes. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：4199 / 4203
页数：5
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