摘要
对烧结破碎、喷雾干燥和团聚烧结的3种不同WC–12Co粉末,采用新研制的超音速等离子喷涂系统制备了涂层。分析了3种涂层SEM形貌、XRD相结构和孔隙率,对比了耐磨性、显微硬度和结合强度。结果表明,用喷雾干燥WC–12Co粉末制备的涂层孔隙率(0.86%)最低、显微硬度(1336HV0.1)最高、氧化失碳(0.92%)最轻,显示出最好的耐磨性和综合性能。
The coatings were sprayed by recently developed supersonic plasma spraying（S-APS） technique with three kinds of WC-12Co powders produced by Sinter-crushed,Spray drying feedstock and Agglomerate-sintered methods. Three kinds of coatings were analysed by SEM and XRD, their porosities, wear resistance, microhardness and bonding strength were compared. The results showed that WC-12Co coating prepared by spraying drying feedstock powder exhibited excellent wear resistance and combined properties, its porosities （0.86 %） was minimum; microhardness （1336HV0.1） was maximum; the oxidation and decarburization of tungsten carbide（0.92 %） was minimum.
出处
《中国表面工程》
EI
CAS
CSCD
2005年第6期30-34,共5页
China Surface Engineering
基金
国防科技重点实验室基金资助(51489020405JS9101)
关键词
WC-12Co粉末
制粉工艺
性能
WC-12Co powder
powder manufacturing technology
properties
