Modeling and Simulation of Iron-Carbon Phase Transformation During Tempering of Steel

作     者：Dong-ying Ju1,Xiao-hu Deng 2 1Department of Mechanical Engineering,Saitama Institute of Technology,Saitama,Japan 2 Advanced Science Research Laboratory,Saitama Institute of Technology,Saitama,Japan 

作者机构：Saitama Inst Technol Dept Mech Engn Saitama Japan Saitama Inst Technol Adv Sci Res Lab Saitama Japan 

出 版 物：《稀有金属材料与工程》 (Rare Metal Materials and Engineering)

年 卷 期：2012年第41卷第S1期

页      面：6-12页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

基　　金：support by the High-tech Research Center and Open Research Center at the Saitama Institute of Technology 

主　　题：tempering phase transformation kinetics transition carbide cementite 

摘      要：Tempering is final process used in heat treatment of steel *** is important to improve the toughness and ductility of the quenched steel without a great loss of the hardness and ***,the traditional tempering process is hard to satisfy requirements of combination mechanical properties with low cost.A quantitative model is developed to simulate the micro-structural evolution during tempering process of carbon steel by modifying the previous Ju and Inoue s *** model takes into account tempering parameters,carbon content and morphology for iron-carbon *** of carbon atoms,precipitation of transition carbides(ε-carbide),decomposition of retained austenite and precipitation of cementite can be predicted *** precipitation of carbides is modeled by considering the competitive precipitations ofε-carbide and *** kinetics of decomposition of retained austenite into ferrite and cementite is depicted by the modified Avrami *** validate the model,it is applied to simulate the tempering process of the as-quenched plain carbon *** volume fractions of iron-carbon phase are calculated at different tempering temperature and *** is indicated that tempering time has greater effect on the volume fraction of carbides at high temperature *** calculated results are reasonable consistent with the theoretical descriptions.