Modeling of Austenite Decomposition in Low Si-Mn TRIP Steel During Cooling

作     者：ZHU Li-juan WU Di ZHAO Xian-ming 

作者机构：College of Materials Science and Engineering Jilin University Changchun 130025 Jilin China The State Key Laboratory of Rolling Technology and Automation Northeastern University Shenyang 110004 Liaoning China 

出 版 物：《Journal of Iron and Steel Research International》 (J. Iron Steel Res. Int.)

年 卷 期：2008年第15卷第6期

页      面：68-71页

核心收录：

学科分类：080602[工学-钢铁冶金] 08[工学] 0806[工学-冶金工程] 

基　　金：Item Sponsored by National Natural Science Foundation of China(50334010) 

主　　题：TRIP steel transformation incubation time ferrite bainite pearlite 

摘      要：Transformation behavior in low carbon Si Mn TRIP steel was investigated by means of microstructural ob servation and computer modelling. A transformation model in which transformation is controlled by carbon diffusion was suggested, which well described the volume fractional change of ferrite, pearlite, and bainite during continuous cooling. The influence of Si content and austenite grain size was thoroughly investigated. The calculated results indicated that Si retards pearlite transformation, accelerates polygonal ferrite transformation, refines the austenite grain, and increases the ferrite transformation rate.