V-Ti增强相含量对表面改性模具性能的影响  

Effect of V-Ti Solid Solution Content on the Properties of Surface Modified Mold

作　　者：季业益[1] 陆宝山[1,2] 孙书娟[3] 李强伟[4] 

机构地区：[1]苏州工业职业技术学院精密制造工程系,江苏苏州215003 [2]江苏大学材料科学与工程学院,江苏镇江212013 [3]苏州建设交通高等职业技术学校,江苏苏州215124 [4]苏州大学工程训练中心,江苏苏州215123

出　　处：《钢铁钒钛》2016年第5期65-69,共5页Iron Steel Vanadium Titanium

基　　金：江苏省高等职业院校高级访问工程师计划资助项目(编号:2015FG038);江苏高校品牌专业建设工程资助项目(编号:PPZY2015B186);国家自然科学基金(51275216)

摘　　要：在激光熔敷粉末中添加不同含量的V-Ti固溶体增强相,对3Cr2W8V模具进行了表面改性,并进行了耐磨损性能和热疲劳性能的测试与分析。结果表明,添加V-Ti固溶体增强相有利于提高表面改性模具的耐磨损性能和热疲劳性能;V-Ti固溶体增强相粉末含量优选为15%。与未添加V-Ti固溶体相比,添加15%V-Ti固溶体增强相激光熔敷粉末表面改性3Cr2W8V模具的磨损体积减小63%,热疲劳裂纹级别从7级变为2级。3Cr2WSV die was surface modified by adding different contents of V-Ti solid solution reinforced phase in the laser cladding powder,and the wear resistance and thermal fatigue properties of the modified die were tested and analyzed. The results show that adding V-Ti solid solution could improve the wear resistance and thermal fatigue properties of the surface modified die. The optimized content of V-Ti solid solution is 15%. Compared with those of the die without V-Ti solid solution in the laser cladding powder,the wear volume of the surface modified die decreases by 63% ,and its thermal fatigue crack level changes from 7 to 2.

关 键 词：3Cr2W8V模具 表面改性 V-Ti固溶体粉末 增强相含量 耐磨损性能 热疲劳性能 

分 类 号：TG76[金属学及工艺—刀具与模具] TG174.4