Constitutive modeling of hot deformation behavior of H62 brass

被引：107
作者：
Xiao, Yan-Hong [1 ]
Guo, Cheng [1 ]
Guo, Xiao-Yan [1 ]
机构：
[1] Xi An Jiao Tong Univ, Dept Mech Engn, Xian 710049, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2011年 / 528卷 / 21期
关键词：
H62; brass; Deformation behavior; Flow stress; Microstructure; Constitutive equation; TEMPERATURE FLOW BEHAVIOR; STAINLESS-STEEL; 42CRMO STEEL; STRAIN-RATE; STRESS; PREDICTION; EQUATIONS;
D O I：
10.1016/j.msea.2011.04.090
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The hot deformation behaviors of H62 brass are investigated by isothermal compression tests on a Gleeble 1500 thermal-mechanics simulator in the temperature range of 650-800 degrees C and the strain rate range of 0.01-10 s(-1). Most of the stress-strain curves exhibit a single peak stress, indicating a typical dynamic recrystallization (DRX) behavior of the alloy. Further microstructural observation confirms the occurrence of DRX behavior and the beta ->alpha phase transformation of H62 brass under the deformation conditions. A new constitutive equation coupling flow stress with strain, strain rate and deformation temperature is developed on the basis of the Arrhenius-type equation, in which the Zener-Hollomon parameter is modified by considering the compensation of the strain rate. In the constitutive equation, the material constants alpha, n, Q and A are found to be functions of the strain. The flow stress predicted by the constitutive equation shows good agreement with the experimental stress, which validates the efficiency of the constitutive equation in describing the deformation behavior of the material. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：6510 / 6518
页数：9
相关论文
共 25 条
[11]   Modeling of flow stress of 42CrMo steel under hot compression [J].
Lin, Yong-Cheng ;
Chen, Ming-Song ;
Zhang, Jun .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2009, 499 (1-2) :88-92
[12]   Constitutive equations to predict high temperature flow stress in a Ti-modified austenitic stainless steel [J].
Mandal, Sumantra ;
Rakesh, V. ;
Sivaprasad, P. V. ;
Venugopal, S. ;
Kasiviswanathan, K. V. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2009, 500 (1-2) :114-121
[13]   Constitutive analysis in hot working [J].
McQueen, HJ ;
Ryan, ND .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2002, 322 (1-2) :43-63
[14]   Flow stress prediction at hot working conditions [J].
Mirzadeh, H. ;
Najafizadeh, A. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2010, 527 (4-5) :1160-1164
[15]   Characterization of hot deformation behavior of 410 martensitic stainless steel using constitutive equations and processing maps [J].
Momeni, A. ;
Dehghani, K. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2010, 527 (21-22) :5467-5473
[16]   The influence of the equivalent strain on the microstructure and hardness of H62 brass subjected to multi-cycle constrained groove pressing [J].
Mou, Xueping ;
Peng, Kaiping ;
Zeng, Jiawei ;
Shaw, Leon L. ;
Qian, K. -W. .
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2011, 211 (04) :590-596
[17]   Equivalent strain, microstructure and hardness of H62 brass deformed by constrained groove pressing [J].
Peng, Kaiping ;
Mou, Xueping ;
Zeng, Jiawei ;
Shaw, Leon L. ;
Qian, K. -W. .
COMPUTATIONAL MATERIALS SCIENCE, 2011, 50 (04) :1526-1532
[18]   Modeling of flow stress for magnesium alloy during hot deformation [J].
Qin, Yin-Jiang ;
Pan, Qing-Lin ;
He, Yun-Bin ;
Li, Wen-Bin ;
Liu, Xiao-Yan ;
Fan, Xi .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2010, 527 (10-11) :2790-2797
[19]   A comparative study on Johnson Cook, modified Zerilli-Armstrong and Arrhenius-type constitutive models to predict elevated temperature flow behaviour in modified 9Cr-1Mo steel [J].
Samantaray, Dipti ;
Mandal, Sumantra ;
Bhaduri, A. K. .
COMPUTATIONAL MATERIALS SCIENCE, 2009, 47 (02) :568-576
[20]   ON MECHANISM OF HOT DEFORMATION [J].
SELLARS, CM ;
MCTEGART, WJ .
ACTA METALLURGICA, 1966, 14 (09) :1136-&
123