Effect of Aluminum on the Microstructure and Mechanical Properties in Hot-rolled Medium Manganese Steels
The influence of aluminum on microstructure and mechanical properties were studied in hot-rolled medium manganese steels.It is found that addition of aluminium dont significantly change the microstructure evolution during heat treatment process; aluminium can retard the precipitation of carbides in the annealing,resulting in higher carbon content in several austenite,Though aluminium addition leads to a certain decline of tensile strength,the yield strength and elongation are neither decreasing significantly.Furthermore,the Al-bearing medium manganese steels can achieve optimal product of strength and ductility at 670℃ and long time (6 hrs) annealing,the excellent mechanical properties are strength ~1023 MPa,total elongation ~50.8% and product of tensile strength to total elongation (Rm·AT) ~52 GPa·%.
aluminum medium manganese steel microstructure mechanical properties
SHAO Chengwei HUI Weijun ZHAO Xiaoli ZHANG Yongjian WENG Yuqing
School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University,Beijing 100044, China
国际会议
成都
英文
290-293
2016-11-16（万方平台首次上网日期，不代表论文的发表时间）