北京科技大学学报2012，Vol.34Issue(2)：132-136,5.
低碳中锰热轧TRIP钢退火工艺及组织演变
Annealing processing parameters and microstructure evolution of hot-rolled low-carbon medium-manganese TRIP steels
摘要
Abstract
The effects of annealing processing on the mechanical properties and microstructure evolution of high strength and high ductility TRIP steels were investigated.The hot-rolled-and-annealed TRIP steel has remarkable strength and ductility due to the prior martensitic microstructure obtained in the as-hot-rolled condition and the retained austenite formed during intercritical annealing.The results show that the test steels have a tensile strength of over 1 000 MPa and an elongation of over 30%,and the product of ultimate tensile strength and total elongation exceeds 30 GPa·%.The mechanical properties are significantly influenced by intercritical annealing temperature and soaking time.When the TRIP steel is treated at an intercritical annealing temperature of 630 ℃ for 18h,the best mechanical properties are obtained.关键词
TRIP钢/残余奥氏体/锰/退火/微观组织Key words
TRIP steels/retained austenite/manganese/annealing/microstructure分类
矿业与冶金引用本文复制引用
李振,赵爱民,唐获,米振莉,焦殿辉..低碳中锰热轧TRIP钢退火工艺及组织演变[J].北京科技大学学报,2012,34(2):132-136,5.基金项目
国家高技术研究发展计划资助项目 （）
教育部博士点基金（博导类）资助项目 （）
