用扫描电镜、透射电镜、拉伸试验机等研究了淬火加热速率对980 MPa双相钢显微组织和力学性能的影响。结果表明：在5～150℃·s-1加热速率范围内加热后淬火时，随加热速率的增大，铁素体晶粒有细化的趋势，马氏体尺寸更加均匀，抗拉强度增加到1 300MPa后基本保持不变，其屈服强度和伸长率先增加后减小，当加热速率为100℃·s-1时，综合性能最好，抗拉强度为1 328 MPa，伸长率约为13％，屈强比为0.32。
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