不同工艺粉末对超音速火焰喷涂WC-10Co-4Cr涂层性能的影响  

Influence of Different Powder on Properties of WC-10Co-4Cr Coatings Prepared by HVOF

作　　者：刁望勋[1] 王志雄[1,2] 高俊国[1] 王长亮[1] 郭孟秋[1] 刘超[3] 

机构地区：[1]北京航空材料研究院,北京100095 [2]中国石油大学(北京)材料科学与工程系,北京102249 [3]中国石油集团渤海石油装备制造有限公司第一机械厂,河北沧州062658

出　　处：《航空材料学报》2013年第3期39-45,共7页Journal of Aeronautical Materials

摘　　要：对比分析了采用烧结破碎和团聚烧结工艺制备的两种WC-10Co-4Cr粉末的物理性能和物相组成。采用超音速火焰喷涂技术对两种粉末进行了涂层制备,并对两种涂层的性能进行对比评价,结果表明:团聚烧结粉末制备涂层的硬度、孔隙率和抗冲蚀磨损性能均优于烧结破碎粉末制备涂层,但其结合强度略低于烧结破碎粉末制备涂层。The physical properties and phase composition of two different WC-IOCo-4Cr powder prepared by kinds of sintering broken and agglomeration sintering processes were analyzed comparatively. Coatings were prepared by HVOF using the two powder and the properties of the two kinds of coatings were also evaluated comparatively. The results revealed that the hardness, porosity and erosion wear resistance of coating prepared from agglomeration sintering powder were superior to the coating from sintering broken powder. Nevertheless, the bonding strength of the coating from agglomeration sintering powder was appreciably lower than that from sintering broken powder.

关 键 词：WC-10Co-4Cr 烧结破碎 团聚烧结 超音速火焰喷涂 涂层性能 

分 类 号：TG174.44[金属学及工艺—金属表面处理]