Effects of Processing Parameters on Microstructure and Properties of 800 MPa Hot Dip Galvanized Dual Phase Steel
JIN Guangcan1,ZHAO Zhengzhi1,XU Gang1,ZHAO Aimin1,LIU Guangming2
1.Research Institute of Metallurgy Engineering, University of Science and Technology Beijing, Beijing 100083, China;2.Institute for Research of Shou Steel, Beijing 100039, China
Abstract：800 MPa class cold rolling hot dip galvanized dual phase steels based on low Si and CMnCrMo alloy system were pilot produced in laboratory. Effect of processing parameters including coiling temperature, annealing temperature and soaking time on microstructures and properties of dual phase steel were studied. The experimental results show that annealed at 820850 ℃,soaking time surpasses 100 s, tensile strength of experimental steel can reach above 800 MPa. The strength of experimental steel increases with the annealing temperature steps up. The synthetical mechanical properties of dual phase steel which annealed at 820 ℃ is the best. When annealed at 820 ℃, the strength of obtained steel dramatically increases with the soaking time. But when soaking time surpasses 100 s, the strength increases slowly. When the coiling temperature is 690 ℃, dual phase steel which has good mechanical properties can be obtained after annealing.
金光灿;赵征志;徐刚;赵爱民;刘光明. 工艺参数对800 MPa热镀锌双相钢组织性能的影响[J]. 钢铁, 2009, 44(5): 72-0.
JIN Guangcan;ZHAO Zhengzhi;XU Gang;ZHAO Aimin;LIU Guangming. Effects of Processing Parameters on Microstructure and Properties of 800 MPa Hot Dip Galvanized Dual Phase Steel. Iron and Steel, 2009, 44(5): 72-0.
2009, Vol. 44 
