The flow behaviors of CLAM steel at high temperature

Wen-Tao Wang; Xun-Zhong Guo; Bo Huang; Jie Tao; Hua-Guan Li; Wen-Jiao Pei

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The flow behaviors of CLAM steel at high temperature

机译：CLAM钢在高温下的流动行为

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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 ℃ 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 a, 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.

机译：研究了CLAM钢的流动行为，以获得成形模拟参数。在Gleeble-1500热模拟机上，在0.001-5 s〜（-1）的应变速率和850-1050℃的温度下进行了热变形实验。结果表明，流动应力随着变形温度的升高而减小，但随着应变率的增大而增大。此外，计算材料常数a，n，In A和活化能Q作为应变的函数。建立了考虑应变，应变速率和温度影响的Arrhenius型本构方程，以描述CLAM钢的热变形行为。所提出的本构方程预测的CLAM钢的流动应力与实验结果高度吻合，表明所建立的本构方程可以精确地预测CLAM钢的流动行为。

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来源
《Materials Science and Engineering》 |2014年第2期|134-140|共7页
作者
Wen-Tao Wang; Xun-Zhong Guo; Bo Huang; Jie Tao; Hua-Guan Li; Wen-Jiao Pei;
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作者单位

College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China;

College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China;

Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, PR China;

College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China;

College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China;

College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China;

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原文格式 PDF
正文语种 eng
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关键词
CLAM steel; Hot compression; Flow stress; Constitutive equation;

机译：CLAM钢;热压缩;流应力本构方程;

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The flow behaviors of CLAM steel at high temperature

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