δ-TRIP钢的物理与力学冶金  

δ-TRIP steel:Physical and mechanical metallurgy

作　　者：易红亮[1] 陈蓬[1] 王国栋[1] 马鸣图[1,2] 

机构地区：[1]东北大学轧制技术及连轧自动化国家重点实验室,沈阳110819 [2]中国汽车工程研究院,重庆400039

出　　处：《中国工程科学》2014年第2期18-30,共13页Strategic Study of CAE

基　　金：国家自然科学基金资助项目(51204051);中央高校基本科研业务费项目(N120507001;N120607001)

摘　　要：δ-相变诱发塑性(TRIP)钢具有高的强韧性,可达到第三代汽车钢性能要求,且可电阻点焊,是一种新型的具有较高产业化前景的先进汽车钢。主要阐述了δ-TRIP钢的发展、组织与性能、相变与组织演化机理、强韧性机理、电阻点焊工艺与物理冶金机理。δ-transformation induced plasticity（TRIP） steel has performed high strength combined with excellent ductility , which satisfy the requirements for the third generation advance steels for automotive application. In addition ,it could to be spot welded. It ’s high potential to be industrialized for both manufacture and automotive application. The develop-ment ofδ-TRIP,microstructure and mechanical properties,transformation and microstructure evolution,strength and toughness mechanism will be reviewed. The process and physical metal-lurgy for resistance spot welding will be discussed as well.

关 键 词：TRIP钢 Δ铁素体 贝氏体相变 组织演化 性能 

分 类 号：TG142.1[一般工业技术—材料科学与工程]