热轧-空冷Si-Mn双相钢的组织稳定性  

Stability of Microstructure of As-Hot Rolled Si-Mn Dual-Phase Steel

作　　者：寇志彬 张国珍[1] 田琮[1] 吴建英[2] 王国斌[2] 杜炜[2] 

机构地区：[1]北京科技大学,北京100083 [2]太原钢铁公司

出　　处：《物理测试》1993年第4期145-149,共5页Physics Examination and Testing

摘　　要：研究了热轧工艺对热轧态双相钢组织稳定性的影响。试样在Gleeble-1500热模拟试验机上进行轧制。用扫描电镜(SEM)和透射电镜(TEM)进行组织分析。试验结果表明,试验钢在850～950℃范围内终轧以及轧后冷速在1℃/s以内波动时,马氏体体积百分数和钢的硬度的变化都很小。这表明试验钢能很好地适应工业生产中各工艺参数的波动。The effect of hot working process on the stability of microstructure of as-hot-rolled dual-phase steel was examined. The specimens were rolled by Gleeble-1500 hot-simulated testing machine, and the microstructure was observed by means of SEM and TEM. Experimental results show: while the final rolling temperature is within the range of 850～950℃ and the cooling rate lower than 1℃/s, the change in the volume fraction of martensite is small (less than 1.1%); and so is the change in hardness of steel. The results indicate that the experimental steel can fit the industrial production conditions in which larger changes of processing parameters exist.

关 键 词：控制轧制 硅锰钢 形变热处理 

分 类 号：TG161.93[金属学及工艺—热处理]