电沉积制备镍基复合镀层的研究进展

发布时间：2018-05-09 04:39

本文选题：电沉积 + 镍基复合镀层　；参考：《表面技术》2017年05期

【摘要】：金属-陶瓷复合镀层可以显著改善的硬度、致密性、耐蚀性、耐磨性以及抗高温氧化性能等可显著得到改善,应用范围广泛。综述了影响复合镀层性能的几大因素,重点介绍了增强相粒子粒径、表面活性剂类型、制备镀层的沉积方式以及第二相颗粒种类对电沉积复合镀层性能的影响。陶瓷颗粒尺寸影响复合镀层的性能,细小颗粒对镍基复合镀层具有细晶强化作用,微米级陶瓷颗粒能够大大改善Ni基复合镀层的力学性能。超细纳米陶瓷颗粒作为增强相,可以显著提高复合镀层的耐蚀性,添加纳米颗粒的复合镀层的显微硬度优于添加微米颗粒复合镀层。非离子表面活性剂能提高第二相颗粒在镀层中的复合量及在镀液中的分散性,有利于获得高硬度的复合镀层,进而提高整个镀层的耐磨性和耐蚀性。超声波-脉冲电沉积法得到的复合镀层形貌更平整,晶粒更细小,结构更致密,且得到的复合镀层硬度更高,耐磨性、耐蚀性更好。与SiC复合镀层相比,SiO_2复合镀层具有更好的耐蚀性和抗氧化性。最后,分析展望了颗粒增强镍基复合材料的应用前景及未来研究的重点。
[Abstract]:The metal ceramic composite coating can significantly improve the hardness, compactness, corrosion resistance, wear resistance and high temperature oxidation resistance. The application range is wide. Several factors affecting the properties of the composite coating are reviewed. The particle size of the enhanced phase, the type of surface active agent, the deposition mode of the preparation of the coating, and the third are introduced. The effect of the type of binary particles on the properties of electrodeposited composite coating. The size of the ceramic particles affects the properties of the composite coating. The fine particles have a fine grain strengthening effect on the nickel base composite coating, and the microscale ceramic particles can greatly improve the mechanical properties of the Ni based composite coatings. The corrosion resistance of the coating, the microhardness of the composite coating with nano particles is better than that of the composite coating with micron particles. The non ionic surfactant can improve the composition of the second phase particles in the coating and the dispersion in the bath. It is beneficial to obtain the composite coating with high hardness and improve the wear resistance and corrosion resistance of the whole coating. The composite coating obtained by wave pulse electrodeposition is more flat, finer, more compact, and the composite coating has higher hardness, wear resistance and corrosion resistance. Compared with the SiC composite coating, the SiO_2 composite coating has better corrosion resistance and oxidation resistance. Finally, the application of the particle reinforced nickel matrix composite material is prospected. Prospects and future research focus.

【作者单位】：沈阳大学辽宁省先进材料制备技术重点实验室;
【基金】：辽宁省高等学校优秀人才支持计划项目资助(LJQ2015074) 国家自然科学基金资助(51101104,51372156)~~
【分类号】：TQ153.2

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