Preparation and Properties of High Hardness and Oxidation Resisting Coating Using Electric Arc Spray  

作　　者：LIZhuo-xin CUILi WANGJiang-ping TANGChun-tian 

机构地区：[1]BeijingUniversityofTechnology,Beijing,100022

出　　处：《材料热处理学报》2004年第05B期984-987,共4页Transactions of Materials and Heat Treatment

基　　金：sponsored by National Natural Science Foundation of China(50375004).

摘　　要：A coating with high hardness, wear and oxidation resistance was prepared by electric arc spray. The hardness, bonding strength, abrasive wear and values of porosity and oxidation resistance of the coating were investigated. The microstructures and function of Cr3C2 of the coating were analyzed. The results showed surface Rockness Hardness HR30 reached 72.5 and average bond strength reached 49.1Mpa. Also porosity value was less than 2%. In addition, it was found from the comparison between the coating and 45CT coating that, oxidation resistance of the coating was less than that of 45CT, but the abrasive wear of the coating was obvious better than that of 45CT.A coating with high hardness, wear and oxidation resistance was prepared by electric arc spray. The hardness, bonding strength, abrasive wear and values of porosity and oxidation resistance of the coating were investigated. The microstructures and function of Cr3C2 of the coating were analyzed. The results showed surface Rockness Hardness HR30 reached 72.5 and average bond strength reached 49.1Mpa. Also porosity value was less than 2%. In addition, it was found from the comparison between the coating and 45CT coating that, oxidation resistance of the coating was less than that of 45CT, but the abrasive wear of the coating was obvious better than that of 45CT.

关 键 词：硬度 磨损性能 高温氧化 电弧喷镀 

分 类 号：TG174.442[金属学及工艺—金属表面处理]