终轧温度对热轧双相钢微观形貌的影响

1.辽宁科技大学材料科学与工程学院,辽宁鞍山,114044

2.辽宁科技大学材料科学与工程学院,辽宁鞍山,114044;东北大学轧制及连轧自动化国家重点实验室,辽宁沈阳,110004

3.东北大学轧制及连轧自动化国家重点实验室,辽宁沈阳,110004

4.东北大学轧制及连轧自动化国家重点实验室,辽宁沈阳,110004

基金项目: 国家自然科学基金(50504007)

Effect of Finishing Temperature on Microstructure of Hot Rolled Dual-phase Steel

利用实验室轧机、光学显微镜、透射电镜等研究了终轧温度对高强热轧双相钢微观形貌的影响.结果表明:得到的双相钢的显微组织主要是纤维状双相混合型组织;随终轧温度的降低,过冷度加大,铁素体的形核驱动力加大,形核率增加,使晶粒明显细化.

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