文献类型：期刊文献

中文题名：A review of the thermal stability of metastable austenite in steels:Martensite formation

作者：Yong Li[1];David San Martín[2];Jinliang Wang[1,3];Chenchong Wang[1];Wei Xu[1]

机构：[1]State key laboratory of rolling and automation,Northeastern University,Shenyang 110819,China;[2]Materalia Research Group,Centro Nacional de Investigaciones Metalúrgicas(CENIM-CSIC),Avda Gregorio del Amo 8,Madrid E-28040,Spain;[3]School of Mechanical and Power Engineering,Guangdong Ocean University,Zhanjiang 524088,China

年份：2021

期号：32

起止页码：200

中文期刊名：Journal of Materials Science & Technology

外文期刊名：材料科学技术（英文版）

收录：CSTPCD、、CSCD2021_2022、Scopus、CSCD、PubMed

基金：financially supported by the National Natural Science Foundation of China (Nos. 51961130389 and U1808208);the National Key Research and Development Program (No.2017YFB0304402)。

语种：英文

中文关键词：Austenite;Thermal stability;Martensitic transformation;Kinetic models

中文摘要：Metastable austenite plays a critical role in achieving improved combinations of high strength and high ductility/toughness in the design of advanced high-strength steels(AHSS). The thermal stability of metastable austenite determines the transformation characteristics of AHSS and thus primarily determines the microstructure evolution during complex processes, e.g., the quenching and partitioning process, to achieve the desirable microstructure. This study provides a review of the thermal stability of austenite and its influence on martensitic transformation from both experimental and theoretical modeling perspectives. From the experimental perspective, factors affecting the thermal stability are analyzed,the relative sensitivities are compared, and their corresponding mechanisms are discussed. From the theoretical modeling perspective, the most representative kinetic models that describe athermal and isothermal martensitic transformation are reviewed. The advantages, shortcomings, and applicability of each model are discussed. The systematic review of both experimental and theoretical aspects reveals critical factors in tailoring the stability of metastable austenite and, therefore, provides guidance for the design of advanced steels.