Effect of Annealing Temperature on Microstructure and Properties of 980MPa Grade Cold-rolled Dual-phase Steel
The continuous annealing simulator was used to investigate the influences of annealingtemperature on microstructure and mechanical properties of a high strength cold-rolled DP980 steel during continuous annealing process.The microstructures were observed by scanning electron microscopy and transmission electron microscopy.The mechanical properties were measured by uniaxial tensile tests.The research results revealed that with annealing temperature increases,the tensile strength and yield strength increased,elongation increased at first and then decrease.The experimental steel has a best mechanical properties when annealing temperature is 790℃,and the product of strength and ductility can reach 13.826Gpa· %.
dual-phase steel annealing temperature microstructure and mechanical properties
XIAO Yangyang LI Qinyi ZHANG Wu ZHAN Hua ZHEN Xiaofang LIU Yonggang ZOU Ying
Technology Center of Maanshan Iron and Steel Company, Maanshan 243000, Anhui, China
国际会议
成都
英文
525-530
2016-11-16（万方平台首次上网日期，不代表论文的发表时间）