Recent progress in third-generation low alloy steels developed under M^3 microstructure control

作     者：Zhen-jia Xie Cheng-jia Shang Xue-lin Wang Xue-min Wang Gang Han Raja-devesh-kumar Misra Zhen-jia Xie;Cheng-jia Shang;Xue-lin Wang;Xue-min Wang;Gang Han;Raja-devesh-kumar Misra

作者机构：Collaborative Innovation Center of Steel TechnologyUniversity of Science and Technology BeijingBeijing 100083China Institute of Advanced Materials and TechnologyUniversity of Science and Technology BeijingBeijing 100083China Laboratory for Excellence in Advanced Steel ResearchDepartment of MetallurgicalMaterials and Biomedical EngineeringUniversity of Texas at El PasoEl PasoTX 79968USA 

出 版 物：《International Journal of Minerals,Metallurgy and Materials》 (矿物冶金与材料学报（英文版）)

年 卷 期：2020年第27卷第1期

页      面：1-9页

核心收录：

学科分类：0709[理学-地质学] 0819[工学-矿业工程] 0806[工学-冶金工程] 08[工学] 0708[理学-地球物理学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0802[工学-机械工程] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：financially supported by the National Natural Science Foundation of China (No. 51701012) the National Basic Research Program of China (973 Program: No. 2010CB630801) the Fundamental Research Funds for the Central Universities (No. FRF-TP-17-004A1) 

主　　题：third-generation low alloy steels multi-phase microstructure meta-stable retained austenite multi-scale precipitates 

摘      要：During the past thirty years, two generations of low alloy steels(ferrite/pearlite followed by bainite/martensite) have been developed and widely used in structural applications. The third-generation of low alloy steels is expected to achieve high strength and improved ductility and toughness, while satisfying the new demands for weight reduction, greenness, and safety. This paper reviews recent progress in the development of third-generation low alloy steels with an M^3 microstructure, namely, microstructures with multi-phase, meta-stable austenite, and multi-scale precipitates. The review summarizes the alloy designs and processing routes of microstructure control, and the mechanical properties of the *** stabilization of retained austenite in low alloy steels is especially emphasized. Multi-scale nano-precipitates, including carbides of microalloying elements and Cu-rich precipitates obtained in third-generation low alloy steels, are then introduced. The structure–property relationships of third-generation alloys are also discussed. Finally, the promises and challenges to future applications are explored.