不同电流下等离子喷涂Ni-Al/Al2O3涂层的组织结构影响研究

摘要

在钢铁材料表面喷涂陶瓷涂层是解决钢铁材料耐腐蚀、耐磨损、耐高温的有效途径，等离子喷涂技术是实现涂层的有效手段。以Q235钢为基材，以Ni-Al自黏性复合粉末和Al 2 O 3陶瓷粉末混合粉末为原始粉料，采用等离子喷涂技术制备了陶瓷复合涂层，研究了电流对涂层组织结构的影响，得到了一些可以借鉴的研究结果。%Spraying ceramic coating in the steel material surface is the effective way to solve the steel material corrosion resistance, abrasion resistance, high temperature resistance; plasma spraying technique is an effective means to realize the coating. This paper takes the Q235 steel as base material, using Ni-Al self adhesive composite powders and Al2O3 ceramic powder mixed powder as the original powder, ceramic composite coating was prepared by plasma spraying technology, the effect of current on the microstructure of coating was studied, and some valuable research results are obtained.