摘要
采用等离子熔覆技术,在调质C3钢表面制得以原位生成初生相Cr7C3为增强相的金属陶瓷复合材料涂层;利用SEM、XRD和EDS等分析了涂层的显微组织和相组成;测试了在室温干滑动磨擦及高温滑动磨擦条件下涂层的耐磨性,并讨论了其磨损机理。结果表明:涂层的相组成是Cr7C3增强相和-γFe固溶体与少量Cr7C3构成的共晶;涂层在室温和高温干滑动磨擦条件下均具有优良的耐磨性能。
A new type in-situ reinforcing Cr7C3 ceramal composite coating was fabricated on carbon steel（C3 ） substrate by plasma cladding. Microstructure of the ceramal composite coating was characterized by SEM, XRD and EDS. Room and high temperature wear properties were evaluated under dry sliding wear test conditions and their wear mechanism was discussed. The plasma clad ceramal composite coating consistsed of primary Cr7 C3 and Cr7 C3 /γ-Fe eutectics. The coating possessed excellent sliding wear resistance under both room and high temperature test conditions.
出处
《机械工程材料》
CAS
CSCD
北大核心
2006年第2期42-45,共4页
Materials For Mechanical Engineering
基金
河南省杰出人才创新基金资助项目(0421001000)
