Ni-SiC刷镀层高温氧化性能研究  

Study on the high temperature oxidation resistance of Ni-SiC coatings

作　　者：夏法锋[1] 和雅楠 朱永永[2] 马春阳[1] 

机构地区：[1]东北石油大学机械科学与工程学院,黑龙江大庆163318 [2]重庆第二师范学院经济与工商管理系,重庆400067

出　　处：《功能材料》2016年第1期1177-1179,共3页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(51474072);中国博士后科学基金资助项目(2015M581425)

摘　　要：采用电刷镀方法制备Ni-SiC刷镀层。利用扫描电镜(SEM)和X射线衍射仪(XRD)研究Ni-SiC刷镀层的表面形貌和高温氧化性能。结果表明,镀态Ni-SiC刷镀层颗粒的平均粒径约为0.5μm。高温氧化实验表明,Ni-SiC刷镀层氧化增重量明显小于纯镍刷镀层的增重量,说明Ni-SiC刷镀层的抗高温氧化性能优良。Ni-SiC刷镀层表面存在大量细小的团状颗粒,且粒径分布较均匀,团状颗粒间无融合现象。其XRD图谱中的NiO相峰值较低,Ni相峰值较高。Ni-SiC coatings were prepared using an electro-brush plating method.The surface morphology and high temperature oxidation properties of Ni-SiC coatings were investigated by scanning electron microscopy(SEM)and X-ray diffraction(XRD).The results indicate that the average particle size of the Ni-SiC coating is approximately 0.5μm.The high temperature oxidation experiments present that the oxidation of Ni-SiC coating is significantly less than that of nickel coating,which illustrates the oxidation resistance of Ni-SiC coating is excellent.In addition,there are a lot of fine particles on the surface of the Ni-SiC coating,and the distribution of particles is uniform,there is no fusion between the particles.The peak of NiO is lower and that of Ni phase is higher in XRD patterns.

关 键 词：Ni-SiC刷镀层 电刷镀 高温氧化性 

分 类 号：TG178[金属学及工艺—金属表面处理]