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http://www.rclbbs.com/forum.php?mod=viewthread&tid=27386 【文章名称】：Microstructure simulation and experimental research of as-cast 42CrMo
steel during quenching process
【发表期刊】：Advanced Materials Research Vols. 317-319 (2011) pp 19-23
【作者】：Jia Fu1,a，Yongtang Li2,b and Huiping Qi3,cTaiYuan university of science and technology
【摘要】：The CCT curve and TTT curve of as-cast 42CrMo steel were precisely simulated by
using JmatPro software. The quenching process(which is as follow: quenching at 860˚C by AQ251
quenching liquid and cooling to 200˚C) was given by analysizing the CCT curve. The quenching
microstructure, hot-stress field and hardness after quenching were simulated by using the
Deform-HT module The results were obtained as follows:(1)The microstructure of the materials is martensite+bottom bainite at the surface and pearlite+ferrite at the centure.(2)The surface hardness and central hardness were separately 51.3 and 28.5 HRC. The metallographic observation and hardness experiment were done and the results of numerical simulation was finally verified.
【关键词】：As-cast 42CrMo steel; Numerical simulation ; Hardness prediction；Microstructure;
【正文快照】：
Introduction
With the development of computer simulation technology, JMATPRO as a material performance
software for Thermalphysical properties parameters is widely used. Meanwhile, Deform–HT
module used in the quenching microstructure simulation becomes increasingly mature. It makes then simulation of heat treatment process continuous. Wang Hong has used the software of ANSYS and JMATPRO to optimize parameters of casting temperature of roll core and then got the optimal solution. The research on quenching simulation by Deform software is rare at home and aboard, which is mainly limited by material properties and software. In this paper, these two simulation software were firstly combined to achieve CCT curve, related quenching parameters and hardness prediction after quenching. According to the analysis of quenching process simulation of as-cast 42CrMo steel by Deform-HT module, the simulated microstructure and hardness prediction have been researched. These have great reference and significant meaning to the practical production.
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