17-4PH钢激光熔覆镍基碳化钨涂层工艺参数研究  

Study on the Process Parameters of 17-4PH Steel Laser Cladding Ni-Based Carbide Coating

作　　者：殷铭[1,2] 王明娣 Yin Ming;Wang Mingdi(Department of Precision Manufacturing Engineering,Suzhou Institute of Industrial Technology,Suzhou215104,Jiangsu,China;School of Mechanical and Electrical Engineering,Soochow University,Suzhou215137,Jiangsu,China)

机构地区：[1]苏州工业职业技术学院精密制造工程系,江苏苏州215104 [2]苏州大学机电工程学院,江苏苏州215137

出　　处：《应用激光》2024年第2期42-51,共10页Applied Laser

基　　金：江苏省高职院校教师专业带头人高端研修项目(2020GRFX079);江苏省职业教育“双师型”名师工作室资助、江苏省“333高层次人才培养工程”资助。

摘　　要：通过正交试验完成16组参数熔覆试验,使用显微硬度仪、摩擦磨损仪考察不同工艺参数试样的硬度、摩擦性能,使用扫描电镜(SEM)分析和研究截面结合处形态、物相。结果表明,在选定的因素和水平情况下,送粉速度对熔覆层硬度影响最大;最佳熔覆样块显微硬度性能较基材提升了182.9%,平均摩擦因数比基材降低了86.7%,熔覆层和基材冶金结合性能良好。16sets of parameter cladding experiments were conducted using orthogonal experiments.The hardness and friction characteristics of specimens with varying process parameters were examined using a microhardness tester and a friction wear instrument.Additionally,the morphology and phase of cross-section joints were analyzed via scanning electron microscopy(SEM).The findings indicate that the powder delivery speed exerts the most significant influence on the cladding layer′s hardness under the specified factors and levels.The microhardness of the optimal cladding sample is 182.9%higher than that of the substrate,resulting in an average friction factor reduction of 86.7%compared to the substrate.Moreover,there is evidence of good metallurgical bonding between the cladding layer and the substrate.

关 键 词：激光熔覆 17-4PH NI60A 正交试验 摩擦磨损 

分 类 号：TH162[机械工程—机械制造及自动化] TG754[金属学及工艺—刀具与模具]