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中锰钢在逆转变奥氏体(Austenite Reverted Transformation,ART)退火处理后具有优异强塑性,符合第三代汽车用先进高强度钢的发展要求。本文分析了ART退火工艺与中锰钢强塑机制的关系,概述了退火温度和时间对其综合力学性能的影响,并讨论了中锰钢(4wt%~8wt%Mn)在塑性变形过程中的主要强塑机制。
In the austenite reverted transformation (ART) annealing process, the manganese steel has excellent ductility and meets the development requirements of advanced high strength steel for the third generation of automobiles. In this paper, the relationship between ART annealing process and the mechanism of strengthening the medium manganese steel is analyzed. The effects of annealing temperature and time on its mechanical properties are summarized. The effects of annealing temperature and time on the mechanical properties of the medium manganese steel are also discussed. In the plastic deformation process of medium manganese steel (4wt% ~ 8wt% Mn) The main strong plastic mechanism.