模具铬钒稀土多元共渗层组织及腐蚀性能研究  

Research on Structure and Corrosion of the RE-chromevanadium Multicomponent Layers on Die

作　　者：黄福祥[1] 姜智枭 曹登驹 苏谋 赵燕燕[1] 

机构地区：[1]重庆理工大学材料科学与工程学院,重庆400054 [2]重庆莱斯硬化技术研究所,重庆400084

出　　处：《重庆理工大学学报（自然科学）》2015年第4期48-52,共5页Journal of Chongqing University of Technology：Natural Science

基　　金：重庆市科技攻关项目(cstc2012gg-yyjs50009)

摘　　要：利用金相显微镜、显微硬度测试仪、XRD、EDS分析及耐蚀性实验对Cr12和Cr12Mo V冷作模具钢稀土铬钒共渗后的覆层组织性能及耐蚀性能进行了研究。结果表明:共渗层主要由VC、Cr23C6、Cr7C3等相组成,渗层厚度、硬度分别为12.7μm,2906 HV0.05和11.9μm,2799 HV0.05;渗层组织均匀致密,显微硬度高,且在10%HCl中浸泡100 h后表现出极好的耐腐蚀性能。Organizational performance and corrosion resistance of RE-chromvanading layers on the cold work die steel Cr12 and Cr12 Mo V was investigated by metallographic microscope,microhardness tester,XRD,EDS analysis and corrosion resistance experiment. The results show that the chromvanading layers consist of VC,Cr23C6,Cr7C3 phase. And their thickness and hardness were respectively12. 7 μm,2906HV0. 05 and 11. 9um,2799HV0. 05. The organization of RE-chromvanading layer is uniform and dense. It shows high microhardness and excellent corrosion resistance while soaked in 10%HCl by 100 hours.

关 键 词：冷作模具 铬钒共渗 稀土铬钒共渗 TD处理 耐蚀性 

分 类 号：TG156[金属学及工艺—热处理]