微量钒对超低碳BH钢退火再结晶动力学和组织的影响

来源期刊：上海金属2010年第3期

论文作者：陈超 史文 吴学亮 王华 高永军 李麟

文章页码：43 - 46

关键词：超低碳烘烤硬化钢； 钒微合金化； 再结晶激活能； 显微组织

Key words：Ultra Low Carbon Bake Hardening Steel； Vanadium Micro-alloying； Recrystallization Activation Energy； Microstructure

摘    要：对添加微量钒的含钛超低碳烘烤硬化钢再结晶动力学和组织进行了研究。结果表明,加钒缩短了再结晶转变过程,同时降低了退火温度对再结晶转变曲线的影响且细化晶粒。添加钒元素使再结晶激活能Q值显著降低,表明含钒钢可降低再结晶退火温度,有节能降耗意义。此外加钒对热轧组织和再结晶组织均有良好影响。

Abstract: The recrystallization kinetics and microstructure of vanadium micro-alloyed ultra low carbon bake hardening steels containing titanium were studied.Results showed that the addition of vanadium shortened the recrystallization process,abated the annealing temperature effect on the recrystallization curve and refined the grain.The value of recrystallization activation energy Q decreased significantly after adding vanadium,which meant that vanadium could reduce the recrystallization annealing temperature,with significance of energy saving.In addition,vanadium would exhibit a positive influence on the microstructure of both the hot-rolled and recrystallized steels.