碳含量对冷轧TRIP钢显微组织及力学性能的影响  

Effect of Carbon Content on Microstructure and Mechanical Properties of Cold-rolled TRIP Steel

作　　者：肖亚慧[1,2] 

机构地区：[1]长春工业大学机械工程学院,吉林长春130000 [2]吉林电子信息职业技术学院,吉林吉林132021

出　　处：《铸造技术》2014年第8期1816-1818,共3页Foundry Technology

摘　　要：研究了不同C含量下TRIP钢的显微组织和力学性能。结果表明,随着等温处理时间的延长,TRIP钢中的贝氏体含量增加,而马氏体含量减少。在出现C饱和之前,奥氏体含量随着等温处理时间的延长而增加;在C饱和之后,奥氏体含量随着等温处理时间的延长而减少。在相同的等温处理时间下,C含量越高,马氏体、贝氏体和奥氏体含量也越高,同时钢的强度也越高。The microstructures and mechanical properties of TRIP steel with different carbon content were investigated. The results show that the bainite content of TRIP steel increases but the martensite content decreases with the increase of isothermal heat-treatment time. The austenite content increases with the increase of isothermal heat-treatment time before the saturation of the carbon, but the variation tendency is opposite after the saturation of the carbon. The content of the martensite, bainite and anstenite increases with the increase of the carbon content, and the strength of the steel also increases in the same isothermal heat-treatment time.

关 键 词：显微组织 等温处理 相变塑性 马氏体 

分 类 号：TG113[金属学及工艺—物理冶金]