Microstructures and Properties of Continuous Annealing DP1000 Dual Phase Steel

摘要：

1000 MPa grade dual phase steels were piloted in laboratory. Optical microscopy,scanning electron microscopy, transmission electron microscope and tensile tests were used to characterize the microstructures and to determine the mechanical properties. The results indicate that soaked at 830℃,then rapidly cooled to 240℃ ,the dual phase steel can get excellent mechanical properties. The yield strength was 535 MPa,the tensile strength was 1145 MPa,the yield ratio was 0.47 and the elongation percentage was 13% ;The tensile strength reduced with increasing the over-ageing temperature. The yield strength,the yield ratio and the elongation percentage increased the increasing the over-ageing temperature. There was yield point at 360℃.

关键词： continuous annealing dual phase steel over-aging tezture

作者: Niu Feng Zhao Aimin Zhao Zhenqzhi Tanq Di Jin Guangcan

作者单位: Institute of Metallurgy Engineering Research,University of Science and Technology Beijing,Beijing 100083,China

会议类型: 国际会议

会议名称: 2009 International Symposium on Automobile Steel(2009年汽车用钢生产及应用技术国际研讨会)

会议地点: 大连

会议语种:英文

页码: 298-302

在线出版日期: 2009-09-06（万方平台首次上网日期，不代表论文的发表时间）