摘要
旨在提高航空9310钢的耐磨与耐蚀能力,运用超音速火焰喷涂技术制备了WC-14Co和WC-10Co4Cr涂层,同时用传统工艺对该钢分别进行了渗碳、镀铬处理,并对试样表面进行了性能对比研究.用X射线衍射仪(XRD)、扫描电镜(SEM)、显微硬度计研究样品微观组织、成分和硬度.采用往复和旋转两种方式测定样品在室温下摩擦磨损性能,通过盐雾腐蚀对比样品耐腐蚀性.结果表明:WC-14Co与WC-10Co4Cr涂层致密、硬度高、摩擦系数小、磨损量低,耐磨性能明显优于渗碳、镀铬;硬铬镀层与WC-10Co4Cr涂层表面形成致密保护膜,大大提高了耐盐雾腐蚀能力.综合考虑耐磨和耐蚀性能,WC-10Co4Cr涂层具有很大的应用潜力.
In order to improve the wear resistance and anti-corrosion performance of 9310 steel,WC-14Co and WC-10Co4Cr coatings were prepared on 9310 steel by supersonic flame spraying technology,and compared with traditional carburizing and Cr-plating.The microstructure,composition and hardness of the samples were investigated by X-ray diffractometry(XRD),scanning electron microscopy(SEM),and micro-hardness test.The friction and wear properties of the samples at room temperature were measured by reciprocating and rotating methods.The corrosion resistance of the samples was compared by salt-spray corrosion.The results show that:WC-14Co and WC-10Co4Cr coatings exhibit excellent performance of dense,high hardness,low friction coefficient,low in wear,and wear resistance.WC-10Co4Cr coating and Cr-plating have favorable performance in anti-corrosion.Above all,WC-10Co4Cr coating is an alternative process to traditional surface treatment of carburizing and Cr-plating in some cases.
作者
苏骐
苏威铭
张吉阜
江平
肖根升
SU Qi;SU Weiming;ZHANG Jifu;JIANG Ping;XIAO Gengsheng(AECC Hunan Aviation Powerplant Research Institute,Zhuzhou 412002,China;Guangdong Institute of New Materials,Guangzhou 510650,China)
出处
《材料研究与应用》
CAS
2019年第4期271-277,共7页
Materials Research and Application
基金
广东省科技项目(2017A070701027)
广州市科技项目(201707010384)
关键词
9310钢
热喷涂
摩擦磨损
腐蚀
9310 steel
thermal spraying
friction and wear
corrosion
作者简介
苏骐(1993-),男,湖南茶陵人,硕士研究生,研究方向为航空齿轮传动.
