Ni/ZrO_2纳米复合刷镀层的抗高温氧化性  

High temperature oxidation resistance of nickel-base nano-ZrO_2 composite coating prepared with electro-brush plating

作　　者：袁庆龙[1] 凌文丹[1] 李平[1] 

机构地区：[1]河南理工大学材料科学与工程学院,河南焦作454003

出　　处：《功能材料》2012年第21期2930-2933,共4页Journal of Functional Materials

基　　金：河南省科技计划资助项目(102102210210)

摘　　要：采用电刷镀技术制备了Ni/ZrO2纳米复合镀层。利用扫描电子显微镜、X射线衍射等手段,研究了Ni/ZrO2纳米复合刷镀层的组织和抗高温氧化性能,并与快速镍镀层进行对比分析。结果表明,与快速镍镀层相比,Ni/ZrO2纳米复合镀层的表面形貌更为平整致密,晶粒尺寸明显减小;在800℃氧化后复合镀层晶粒依然较快速镍镀层细小、均匀,氧化增重速率明显低于快速镍镀层;X射线衍射分析表明,Ni/ZrO2复合镀层的氧化程度较轻,镀层中仍然存在大量的Ni相。Nickel based composite coating with nano-ZrO2 particles was prepared by electro-brush plating. The microstructure and high temperature oxidation resistance of Ni/ZrO2 composite coating were studied with scan electronic microscope and X-ray diffraction compared with fast nickel coating. The results show that the surface morphology of Ni/ZrO2 nano composite coating was relatively smooth and compact and the crystal size obvious reduced. High-temperature oxidation test in air at 800℃ indicates that the grain size of Ni/ZrO2 nano composite coating after oxidation is still smaller and more evenly and the weight-increased rate is obviously lower than that of fast nickel coating. The XRD analysis shows that oxidation degree of Ni/ZrO2 composite coatings is lighter, and there are a lot of nickel phases.

关 键 词：NI ZrO2纳米复合镀层 表面形貌 抗高温 氧化性 

分 类 号：TG178[金属学及工艺—金属表面处理] TQ153[金属学及工艺—金属学]