30Cr2Ni4MoV低压转子钢的静态再结晶行为  

Static recrystallization behavior of 30Cr2Ni4MoV low-pressure rotor steel

作　　者：陈飞[1] 刘建生[1] 马越[1] 龚虎[1] 郭桢[1] 

机构地区：[1]太原科技大学材料科学与工程学院,太原030024

出　　处：《塑性工程学报》2016年第6期151-156,共6页Journal of Plasticity Engineering

基　　金：国家自然科学基金资助项目(51275330)

摘　　要：在Gleeble-1500D热模拟实验机上,使用双道次热压缩的方法,研究了30Cr2Ni4MoV低压转子钢在高温变形时的静态再结晶行为。讨论了变形温度、应变、应变速率与原始晶粒尺寸对其静态再结晶的影响。根据实验结果,建立了30Cr2Ni4MoV钢静态再结晶动力学模型以及静态再结晶晶粒尺寸模型。实验结果表明:间隔时间越长、变形温度越高、应变和应变速率越大,静态再结晶体积分数越大;变形温度越低、应变越大、原始晶粒尺寸越小,静态再结晶晶粒越细小。The static recrystallization behavior by two-pass hot compression test of 30Cr2Ni4MoV low-pressure rotor steel was investigated on a Gleeble 1500D thermo-simulation machine. The effect of deformation temperature, strain, strain rate and initial grain size on the static recrystallization was analyzed. Based on the experimental results, the kinetic model and grain size model for the static recrystallization of 30Cr2Ni4MoV steel were proposed. The results indicate that with the longer interval holding time, the higher deformation temperature, strain and strain rate, the greater volume fraction of the static recrystallization is obtained. And the lower the deformation temperature is, the greater the strain is and the smaller the initial grain size is, the finer the static recrystallization grains become.

关 键 词：30CR2NI4MOV钢 静态再结晶 动力学模型 晶粒尺寸模型 

分 类 号：TG142.1[一般工业技术—材料科学与工程]