Abstract： The fundamental research and industry trials of the 3rd generation automobile steels was introduced. Motivitated by the theory of microstructure control characterized by Multiphase, Metastable and Multiscale(called M3 simply), summary and review of the home and abroad automobile steels were carried out, which led to the idea microstructure controlling characterized by ultrafine grained matrix and metastable austenite phase and the approaches of medium manganese alloying and austenite reverted transformation annealing for the research and development of the 3rd generation automobile steel. The fundamental research and industry trials were introduced in details, which included the mechanism of austenite reverted transformation, microstructure evolution of the ultrafine grained ferrite and austenite dualphase structure, mechanical behaviors and ductilityenhancing mechanism, industry trial process, service performance and application technologies and prospects of the 3rd generation steels. It was concluded that this study forms the prototype technologies of the third generation automotive sheet steel, which provides the theorical and technological basement for the weightlightening and safetyimprovement of the automotive steels in materials aspect.
董瀚，曹文全，时捷，王存宇，王毛球，翁宇庆. 第3代汽车钢的组织与性能调控技术[J]. 钢铁, 2011, 46(6): 1-11.
DONG Han,CAO Wenquan,SHI Jie,WANG Cunyu,WANG Maoqiu,WENG Yuqing. Microstructure and Performance Control Technology of the 3rd Generation Auto Sheet Steels. Iron and Steel, 2011, 46(6): 1-11.
2011, Vol. 46 
