摘要
Inconel617合金材料在实际应用中以耐腐蚀性、高温抗氧化性能和耐磨性为主。但是,其本身耐磨性比较低。为了提高Inconel617合金表面耐磨性,采用高速火焰喷涂与电子束表面改性技术在Inconel617合金表面制备了WC–Co Cr陶瓷涂层。分析了合金层的微观组织结构和元素分布情况,测试了合金层的硬度与耐磨性。结果表明,在电子束熔覆处理过程中,涂层重熔与基体形成冶金结合,使其耐磨性能大大提高。熔覆层硬度相比Inconel617合金硬度高出620HV0.3。
The material of Inconel617alloy has the properties of corrosion resistance,high temperature oxidation resistance and wear resistance in the practical application.But,its wear resistance is poor.In order to improve the wear resistance of Inconel617alloy,HVOF(high velocity oxygen fuel)and electron beam surface modification technology were used to prepare WC-CoCr ceramic coating on Inconel617alloy.The microstructure and element distribution of the alloy layer were analyzed.Hardness and wear resistance of the alloy layer were tested.The results show that in the process of electron beam processing,the forming metallurgical bond of coating remelting and matrix could increase wear resistance significantly.Compared with the substrate,hardness of the cladding layer improves significantly.
作者
刘海浪
王波
李行
黄以平
LIU Hailang;WANG Bo;LI Hang;HUANG Yiping(School of Electromechanical Engineering, Guilin University of Electronic Technology, Guilin 541004, China)
出处
《航空制造技术》
2017年第21期102-104,109,共4页
Aeronautical Manufacturing Technology
基金
桂林电子科技大学研究生教育创新计划资助项目(YJCXS201507)
广西制造系统与先进制造技术重点实验室主任基金项目(14-045-15-011Z)
