摘要
以硼砂基盐和供钒剂为主要原料,利用热辐射效应在Cr12MoV钢表面制备了VC涂层,通过扫描电子显微镜、能谱分析仪观察了涂层显微组织,考察了涂层在室温往复干摩擦条件下的耐磨性能,测试了VC涂层摩擦系数,对其磨损机制进行了分析.结果表明:VC涂层主要由团聚状VC颗粒组成,其组织结构均匀,与基体之间形成完全冶金结合;涂层在滑动干摩擦条件下表现出优异的耐磨性能,VC涂层磨损机制主要为疲劳磨损和磨粒磨损.
By using borax salt and vanadium as the main materials,the VC（Vanadium Carbide） coating was prepared on the surface of Cr12MoV steel with a TD（thermal diffusion） process.The micro-structures and chemical element compositions of the coating were observed with SEM and EDS,respectively.The reciprocating friction and wear of Cr12MoV steel disk against a steel ball under unlubricated condition at room temperature were evaluated and wear mechanism were analyzed.The results showed that VC coating was composed of flocculent aggregate VC grains and had a uniform structure.The metallurgical bonding was found at the coating/substrate interface.VC coating showed excellent resistance to wear under the unlubricated condition.The wear mechanism of VC coating was a combination of fatigue wear and abrasive wear.
出处
《摩擦学学报》
EI
CAS
CSCD
北大核心
2011年第4期335-339,共5页
Tribology
基金
江苏省高校自然科学基础研究项目(08KJB430002)
常州市技术创新资金计划(CN20090023)
江苏省普通高校研究生科研创新计划项目(XM2010-243)
常州市数字化设计重点实验室开放基金(DDKF2010001)资助~~
关键词
TD处理
VC涂层
磨损性能
摩擦系数
TD process
VC coating
wear property
friction coefficient
