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Modeling of flow stress of 42CrMo steel under hot compression

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WOS被引频次:131
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成果类型:
期刊论文、会议论文
作者:
Lin, Yong-Cheng*;Chen, Ming-Song;Zhang, Jun
通讯作者:
Lin, Yong-Cheng
作者机构:
[Chen, Ming-Song; Lin, Yong-Cheng] Cent S Univ, Sch Mech & Elect Engn, Minist Educ, Key Lab Modern Complex Equipment Design & Extreme, Changsha 410083, Peoples R China.
[Zhang, Jun] Zhengzhou Univ, Sch Chem Engn & Technol, Zhengzhou 450002, Peoples R China.
通讯机构:
[Lin, Yong-Cheng] Cent S Univ, Sch Mech & Elect Engn, Minist Educ, Key Lab Modern Complex Equipment Design & Extreme, Changsha 410083, Peoples R China.
语种:
英文
关键词:
42CrMo steel;Hot compression deformation;Flow stress;Constitutive equation
期刊:
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN:
0921-5093
年:
2009
卷:
499
期:
1-2
页码:
88-92
会议名称:
5th International Conference on Physical and Numerical Simulation of Material Processing (ICPNS 07)
会议时间:
OCT 23-27, 2007
会议地点:
Zhengzhou, PEOPLES R CHINA
会议主办单位:
[Lin, Yong-Cheng;Chen, Ming-Song] Cent S Univ, Sch Mech & Elect Engn, Minist Educ, Key Lab Modern Complex Equipment Design & Extreme, Changsha 410083, Peoples R China.^[Zhang, Jun] Zhengzhou Univ, Sch Chem Engn & Technol, Zhengzhou 450002, Peoples R China.
会议赞助商:
Chinese Mech Engn Soc, Minerals, Met & Mat Soc, Japan Inst Met, Harbin Inst Technol, Zhengzhou Univ, Henan Polytech Univ, Zhongyuan Inst Technol
出版地:
PO BOX 564, 1001 LAUSANNE, SWITZERLAND
出版者:
ELSEVIER SCIENCE SA
文献类别:
WOS:Article;Proceedings Paper;EI:Journal article (JA)
所属学科:
ESI学科类别:材料科学;WOS学科类别:Materials Science, Multidisciplinary;Metallurgy & Metallurgical Engineering;Nanoscience & Nanotechnology
入藏号:
WOS:000261703300020;EI:20084711718902
机构署名:
本校为第一且通讯机构
院系归属:
机电工程学院
摘要:
The compressive deformation behavior of 42CrMo steel was investigated at temperatures from 850 &deg;C to 1150 &deg;C and strain rates from 0.01 s<sup>-1</sup> to 50 s<sup>-1</sup> on a Gleeble-1500 thermo-simulation machine. The results show that the true stress-true strain curves exhibit peak stresses at small strains, then the flow stresses decrease monotonically until high strains, showing a dynamic flow softening. The stress level decreases with increasing deformation temperature and decreasing strain rate, which can be represented by a Zener-Hollomon parameter in an exponent-type equation. A revised model describing the relationships of the flow stress, strain rate and temperature of the 42CrMo steel at elevated temperatures is proposed by compensation of strain. The stress-strain relations of 42CrMo steel predicted by the proposed models agree well with experimental results. &copy;2008 Elsevier B.V. All rights reserved.
参考文献:
Jonas J.J., 1969, MET REV, V14, P1, DOI DOI 10.1179/095066069790138056
Ju DY, 2006, MAT SCI ENG A-STRUCT, V438, P246, DOI 10.1016/j.msea.2006.01.125
Kang SG, 2007, MAT SCI ENG A-STRUCT, V449, P338, DOI 10.1016/j.msea.2006.01.166
Kim SI, 2003, J MATER PROCESS TECH, V140, P84, DOI 10.1016/S0924-0136(03)00742-8
Lin YC, 2008, COMP MATER SCI, V43, P1117, DOI 10.1016/j.commatsci.2008.03.010

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