The flow behaviors of CLAM steel at high temperature

被引：33
|
作者：
Wang, Wen-Tao [1 ]
Guo, Xun-Zhong [1 ]
Huang, Bo [2 ]
Tao, Jie [1 ]
Li, Hui-Guan [1 ]
Pei, Wen-Jiao [1 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Nanjing 210016, Peoples R China
[2] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2014年 / 599卷
基金：
中国国家自然科学基金;
关键词：
CLAM steel; Hot compression; Flow stress; Constitutive equation; HOT DEFORMATION-BEHAVIOR; MARTENSITIC STEEL; ALUMINUM-ALLOY; MECHANICAL-PROPERTIES; ELEVATED-TEMPERATURE; 42CRMO STEEL; STRAIN-RATE; COMPRESSION; CORROSION; PREDICT;
D O I：
10.1016/j.msea.2014.01.038
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The flow behaviors of CLAM steel were investigated to obtain the forming simulation parameters. The hot deformation experiment was performed under the strain rate of 0.001-5 s(-1) and the temperature of 850-1050 degrees C on Gleeble-1500 thermo-simulation machine. The results showed that the flow stress decreased with the increasing deformation temperature but increased with the increasing strain rate. Moreover, material constants alpha, n, In A and activation energy Q were calculated as a function of strain. Constitutive equation of Arrhenius-type allowing for the effects of strain, strain rate and temperature was developed to describe the hot deformation behaviors of CLAM steel. The flow stress of CLAM steel predicted by the proposed constitutive equation highly coincided with the experimental results, which demonstrated that the developed constitutive equation could precisely predict the flow behaviors of CLAM steel. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：134 / 140
页数：7
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