摘要
采用北京矿冶研究总院生产的WC-10Co-4Cr复合粉末作为喷涂材料,对该粉末的流动性、松装密度、表面形貌、元素分布等物理性能进行了分析。采用HVOF喷涂法制备WC-10Co-4Cr涂层,测试了涂层的结合强度和显微硬度,并利用HITACHIS-3500型扫描电子显微镜对涂层的显微组织进行了分析。研究结果表明:北京矿冶研究总院生产的WC-10Co-4Cr复合粉末具有良好的物理性能。采用HVOF喷涂制备的WC-10Co-4Cr涂层的连续性和致密度良好,且具有高硬度和结合强度,涂层中各组分分布均匀,没有明显的偏析现象。
WC-10Co-4Cr compound powder for thermal spraying was produced by BGRIMM in this paper.Flowability 、 density 、 surface morphology and element distribution of the coating were investigated.WC-10Co-4Cr coating was prepared on No.45 steel substrate by means of high velocity oxy-fuel spraying （HVOF）.Coating adhesion and hardness were studied.Morphology of coating was analyzed by HITACHIS-3500 microscope.The results indicated that WC-10Co-4Cr compound powder has better physical properties.The coating prepared by HVOF showed excellent not only in continuity and compactness but also in hardness and adhesion.The element distributed equally without segregation.
出处
《热喷涂技术》
2010年第2期7-10,共4页
Thermal Spray Technology
