The finite element analysis of austenite decomposition during continuous cooling in 22MnB5 steel

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	The finite element analysis of austenite decomposition during continuous cooling in 22MnB5 steel
	X. J. Chen; N. M. Xiao; D. Z. Li; G. Y. Li; G. Y. Sun
	2014
发表期刊	Modelling and Simulation in Materials Science and Engineering
ISSN	0965-0393
卷号	22 期号:6
摘要	The hot stamping process has been increasingly used in newly designed vehicles to improve crash worthiness and fuel efficiency. In this study, a finite element model based on a subroutine of the commercial software ABAQUS is developed to predict the interactive influence of temperature field and phase transformation on high-strength boron steel. JMAK-type equations with the incubation time and additivity hypothesis are adopted to describe the austenite decomposition into ferrite, pearlite and bainite, while the Koistinen and Marburger (K-M) model is used to describe the displacive transformation of matensite. The simulation results show that the introduction of incubation time into a JMAK equation can provide a more reasonable prediction of the transformation kinetics than if the equation is unmodified. A comparison between the simulation and the standard Jominy end-quenching test demonstrates the capability of the present model for the prediction of transformation kinetics, microstructure distribution and mechanical properties. Furthermore, the adoption of experimentally measured microhardness values for the individual phase constituent can produce improved accuracy of the hardness predictions compared to the empirical hardness equations.
部门归属	[chen, xiangjun ; li, guangyao ; sun, guangyong] hunan univ, state key lab adv design & mfg vehicle body, changsha 410082, hunan, peoples r china. [chen, xiangjun ; xiao, namin ; li, dianzhong] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. ; chen, xj (reprint author), hunan univ, state key lab adv design & mfg vehicle body, changsha 410082, hunan, peoples r china. ; nmxiao@imr.ac.cn ; gyli@hnu.edu.cn
关键词	Phase Transformation 22mnb5 Jmak Model Jominy End-quenching Test Hot Stamping Transformation Kinetics Microstructure Prediction Simulation Alloys Model
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73197
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. J. Chen,N. M. Xiao,D. Z. Li,et al. The finite element analysis of austenite decomposition during continuous cooling in 22MnB5 steel[J]. Modelling and Simulation in Materials Science and Engineering,2014,22(6).
APA	X. J. Chen,N. M. Xiao,D. Z. Li,G. Y. Li,&G. Y. Sun.(2014).The finite element analysis of austenite decomposition during continuous cooling in 22MnB5 steel.Modelling and Simulation in Materials Science and Engineering,22(6).
MLA	X. J. Chen,et al."The finite element analysis of austenite decomposition during continuous cooling in 22MnB5 steel".Modelling and Simulation in Materials Science and Engineering 22.6(2014).