有氧烧结Ni60/WC合金涂层的组织和性能  

Microstructures and properties of Ni60/WC alloy coating by aerobic sintering

作　　者：韩小云[1,2] 王贤瑞[1] 丁小芹 游航[1] 梁翠[1] 徐金富[1,2] 

机构地区：[1]宁波工程学院材料工艺研究所,浙江宁波3150161 [2]华东理工大学材料科学与工程学院,上海200237

出　　处：《兵器材料科学与工程》2011年第2期64-66,共3页Ordnance Material Science and Engineering

摘　　要：在有氧烧结条件下,在45钢基体上制备Ni60/WC自熔合金涂层。利用XRD、SEM、EDS等对涂层的组织和性能进行分析。结果表明:涂层中主要有γ-(Ni,Fe)、WC、(Cr,Ni)23C6、Co3W3C、Ni2B等相组成,涂层平均显微硬度为918.4HV0.1;在磨粒磨损条件下,磨损率为1.47×10-2 cm3/h;过渡层的显微硬度从918.4HV0.1至220HV0.1呈梯度分布,宽度约为0.30mm。The coating of Ni60/WC self-fluxing alloy was prepared on 45 steel by aerobic sintering.The microstructures and properties of coating were analyzed by XRD,SEM and EDS,etc..The results show that the main phases of the coating are γ-（Ni,Fe）,WC,（Cr,Ni）23C6,Co3W3C,and Ni2B,etc.,and the average microhardness of coatings is 918.4HV.Under the abrasive wear conditions,the wear rate is 1.47×10-2 cm3/h.The microhardness of transition layer distributes gradiently from 918.4HV to 220HV,and the width of coating is about 0.35 mm.

关 键 词：有氧烧结 Ni60/WC 显微硬度 磨粒磨损 

分 类 号：TF123[冶金工程—粉末冶金]