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退火和卷取温度对590 MPa级冷轧热镀锌双相钢板组织与性能的影响 被引量:5

Effects of Annealing and Coiling Temperature on Microstructure and Properties of 590 MPa Cold Rolling Hot Dip Galvanizing Dual Phase Steel Plates
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摘要 在实验室制备了590MPa级冷轧热镀锌双相钢板,采用SEM、TEM和拉伸试验等方法考察了退火温度、卷取温度等工艺参数对该钢显微组织和力学性能的影响。结果表明:经750~820℃保温100s退火后,可以获得抗拉强度615MPa以上、伸长率高达21%的综合性能良好的钢板;随着退火温度的升高,抗拉强度和屈服强度都会增大,伸长率则以820℃退火的最好,其次是800℃退火的,而750℃和780℃退火的则差一些;热轧后650℃卷取的钢板经冷轧和热镀锌退火后,其强度明显高于690℃卷取的。 590 MPa cold rolling hot dip galvanizing dual phase steel plates were prepared in laboratory. Effects of coiling temperature and annealing temperature on microstructure and mechanical properties of the plates were studied by means of SEM,TEM and tensile experiments.The results indicate that after annealing at 750- 820℃for 100 s,the steel plates could obtain good universal properties,that the tensile strength and elongation could reach above 615 MPa and 21%,respectively.The tensile strength and yield strength increased with the increase of annealing temperature.The best elongation could be obtained when annealing at 820℃and the better was at 800℃,while the elongation was relative poor when the annealing temperatures were 750℃and 780℃. When the coiling temperature was 650℃,the strength of the steel plate after cold rolling and hot dip galvanizing annealing was higher than that of coiling at 690℃.
出处 《机械工程材料》 CAS CSCD 北大核心 2010年第12期13-15,73,共4页 Materials For Mechanical Engineering
基金 "十一五"国家科技支撑计划项目(2006BAE03A06) 北京市科技计划资助项目(D07010300700701)
关键词 冷轧 热镀锌钢板 双相钢 退火温度 卷取温度 cold rolling hot dip galvanizing plate dual phase steel annealing temperature coiling temperature
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