Study on TRIP-Aided Steels of Annealed Martensite Matrix with High UTS·TE

摘要：

　　A special TRIP steel with annealed martensite matrix (TAM steel) was obtained by fully quenched and annealed in two-phase region with C-Si-Mn chemical composition of common TRIP steels.The microstructure of TAM steel consisted of uniform fine annealed martensite matrix,interlath second phase (the retained austenite and bainite / martensite) which contributed to lowering the hardness of matrix and strength ratio to second phase,and reducing dislocation density.So TAM steel possessed large total elongation,high tensile strength and excellent stretch-flangeability.The tensile strength of TAM steel could reach 1200MPa or more,and the total elongation could be about 20%.

关键词： Annealed martensite TRIP-aided Steel Retained austenite Mechanical properties

作者: Ding Ran Tang Di Chen Yinli Su Lan Kuang Shuang Jiang Yinghua

作者单位: Engineering Research Institute,University of Science and Technology Beijing,Beijing,100083,China The Technical Research Institute of Shougang,Beijing,100043,China

会议类型: 国际会议

会议名称: The 2nd International Symposium on Automobile Steel (第二届汽车用钢生产及应用技术国际研讨会)

会议地点: 鞍山

会议语种:英文

页码: 72-75

在线出版日期: 2013-05-21（万方平台首次上网日期，不代表论文的发表时间）