25CrMo钢的热变形行为及加工图  

Hot deformation behavior and processing map of 25CrMo steel

作　　者：田伟[1,2] 李红斌[1,2] 徐树成[1,2] 郑明月[1,2] 

机构地区：[1]河北联合大学冶金与能源学院,河北唐山063009 [2]2河北省现代冶金技术重点实验室,河北唐山063009

出　　处：《兵器材料科学与工程》2014年第6期107-110,共4页Ordnance Material Science and Engineering

摘　　要：利用Gleeble3500热模拟机对25Cr Mo钢进行热压缩试验,研究变形温度为950-1 100℃、应变速率为0.01-10 s-1条件下的应力-应变曲线。根据动态材料模型DMM建立材料的热加工图,确定其热变形的流变失稳区,得到25Cr Mo钢在试验参数范围内的最佳热变形工艺参数：温度为1 050-1 100℃、应变速率为0.1 s-1。The hot compression tests of 25CrMo steel were carried out by Gleeble3500 thermal simulator,the strain-stress curves were studied at the deformation temperature of 950 to 1 100 ℃ and strain rate of 0.01 to 10 s-1. Using the processing maps developed on the basis of dynamic material model DMM,unstable deformation regions were defined. The optimal processing parameter of 25CrMo in the processing maps is that the deformation temperature is about 1 050 to 1 100 ℃ and the deformation rate is 0.1 s-1.

关 键 词：25Cr Mo钢 热变形 热加工图 流变失稳 

分 类 号：TG146[一般工业技术—材料科学与工程]