12Cr13钢表面双辉等离子沉积SiC涂层的形貌和耐磨性能  

Morphology and Wear Resistance of SiC Coating Prepared by Double Glow Plasma Deposition on 12Cr13 Stainless Steel Surface

作　　者：王文武[1] 张云鹏[1] 郑燕红[1] 王璘 WANG Wen-wu;ZHANG Yun-peng;ZHENG Yan-hong;WANG Lin(Mechanical Engineering Center,Minnan University of Technology,Shishi 362700,China;Guangzhou Dazhi Environmental Protection Technology Incorporated Company,Guangzhou 510000,China)

机构地区：[1]闽南理工学院机械工程中心,福建石狮362700 [2]广州达志环保科技股份有限公司,广东广州510000

出　　处：《材料保护》2018年第7期39-42,共4页Materials Protection

摘　　要：目前对不锈钢表面SiC涂层的摩擦磨损性能与制备过程中H_2流量的相关性研究较少。通过双辉等离子表面冶金技术在传动机械用12Cr13不锈钢基表面制备SiC涂层,利用表面形貌表征和摩擦磨损试验,分析了H_2流量对SiC涂层的表面形貌和耐磨性能的影响。结果表明:SiC涂层的表面呈现出环状与片层状花纹及凹坑、颗粒等形貌,并且随着H_2流量的增加,其表面形貌缺陷程度也不断增加,各衍射峰呈现明显的增强或者减弱趋势。12Cr13不锈钢基体磨损测试后表现出明显的磨粒磨损特点;随着H_2流量的增加,涂层与接触副接触时容易发生脆性破裂,涂层磨损明显,H_2流量达到20 m L/min时,磨痕表现为深犁沟形态,此时以黏着磨损机制为主。SiC coatings on 12Cr13 stainless steel for mechanical transmission were prepared by using a double glow plasma suIface metallurgy technology. Through the characterization of surface topography and the friction and wear test, the effects of the H2 flow on the surface morphology and wear resistance of SiC coatings were analyzed. Results showed that the SiC coating presented the ring patterns, layered patterns, pits and particles. With the increase of H2 flow, the defects of the surface topography increased and the diffraction peaks showed an obvious trend of increase or decrease. The wear test of 12Cr13 stainless steel matrix showed wear characteristics of abrasive particles obviously. With the increase of H2 flow, the coating was prone to brittle fracture when contacting with rubbing pair, and the coating wear phenomenon became apparent. When H2 flow reached 20 mL/min, the wear was in a deep furrow form and the wear mechanism was mainly adhesive wear.

关 键 词：12Cr13不锈钢 SIC涂层 形貌 耐磨性 

分 类 号：TG174.44[金属学及工艺—金属表面处理]