热处理和热变形对M2高速钢铸带中碳化物的影响  

Effect of Heat Treatment and Hot Deformation on Carbide in High Speed Steel M2 Cast-Strip

作　　者：张彩东[1] 丁培道[1] 周守则[1] 杨春楣[1] 

机构地区：[1]重庆大学材料科学与工程学院,重庆400044

出　　处：《特殊钢》2006年第6期18-20,共3页Special Steel

基　　金：高校博士基金(教技发中心函[2001]156号);重庆市科委重点资助基金项目(2000-6539)

摘　　要：用定量金相法研究了Gleeble1500D自动热模拟机1200℃热处理和1050～950℃40%～60%热变形对3mmM2(W6Mo5Cr4V2)高速钢铸带中碳化物直径,体积分数的影响。研究结果表明,高温热处理和热变形可细化M2钢铸带中的碳化物尺寸,改善碳化物分布;1200℃40min热处理+50%热变形可得到较细的碳化物(0.96μm)和均匀的分布。The effect of 1 200 ℃ heat treatment and 40% - 60% hot deformation at 1 050 - 950 ℃ on diameters and volume fraction of carbide in 3 mm cast-strip of high speed steel M2 （W6MoSCr4V2） using Gleeble 1500D auto thermosimulation machine have been studied by quantitative metallographic examination. The studied results showed that the carbide size in steel M2 was fined and distribution of carbide was improved in cast-strip by high temperature heat treatment and hot deformation, and 1 200 ℃ 40 min heat treatment ＋ 50% hot deformation was available to get fine carbide （0.96μm） and homogeneous distribution.

关 键 词：M2高速钢 双辊薄带连铸 热处理 热变形 碳化物 

分 类 号：TG113[金属学及工艺—物理冶金]