添加纳米CeO_2的Ni基合金喷涂层组织和耐磨性研究  

Study on Structure and Wear Resistance of Ni-based Alloy Spraying Coating with Adding Nanometer CeO_2

作　　者：李建国[1] 陈永亮[1] 杜茂华[1] 胡建平[1] 

机构地区：[1]内蒙古工业大学材料科学与工程学院,内蒙古呼和浩特010051

出　　处：《热加工工艺》2006年第19期41-42,共2页Hot Working Technology

摘　　要：采用亚音速火焰喷涂技术在Q235钢基体表面喷涂不同纳米CeO2含量的Ni基自熔性合金粉末,对获得的喷涂层进行了显微组织、硬度和耐磨性的分析测试,探讨纳米CeO2对Ni基合金喷涂层组织和耐磨性的影响。结果表明,适量地加入纳米稀土氧化物可以改善喷涂层组织,提高喷涂层硬度和耐磨性。Ni-based self-fluxing alloy powder with various percentage of nanometer CeO2 were sprayed on the substrate of Q235 steel by subsonic flame spraying. The microstructure, micro-hardness and wear resistance of the spraying coatings were measured. The effects of nanometer CeO2 on the microstructure and wear resistance of Ni-based self-fluxing alloy coatings were studied. The results show that the microstructure, micro-hardness and wear resistance of the coatings can be improved by adding appropriate quantity of nanometer CeO2.

关 键 词：纳米CEO2 喷涂层 显微组织 耐磨性 

分 类 号：TG424[金属学及工艺—焊接] TG174.44