热喷涂MoS_2/PA(聚酰胺)复合涂层的摩擦学性能及磨损机理研究  

Tribological and Wear Mechanism of Thermal Spray MoS_2/PA (plyamide) Composite Coatings

作　　者：徐海燕[1] 周惠娣[1] 陈建敏[1] 冯治中[1] 

机构地区：[1]中国科学院兰州化学物理研究所固体润滑国家重点实验室,甘肃兰州730000

出　　处：《机械工程材料》2005年第3期35-37,58,共4页Materials For Mechanical Engineering

基　　金：国家自然科学基金资助项目(59925513)

摘　　要：利用热喷涂技术在45钢上制备了MoS2/PA(聚酰胺)复合涂层,考察了不同填料含量复合涂层的摩擦磨损性能,采用SEM分析涂层及对偶磨损表面形貌,并探讨了填料对复合涂层摩擦磨损性能的影响机制。结果表明:填料含量大于3%时,虽然摩擦因数较小,但磨损率很大,且大于纯PA涂层的磨损率;当填料含量小于3%时,涂层摩擦学性能有所提高。MoS2/PA (polyamide) composite coatings were prepared on 45 steel substrate by flame spraying. The friction and wear behavior of the MoS2 /PA coatings were examined using a MM-200 friction and wear tester. The morphology of worn surface of coatings and counter surface was analyzed by SEM. The results showed that a higher content of fillers in PA coatings could not enhance the tribological properities of coatings while a lower content of fillers in PA coatings was beneficial.

关 键 词：火焰喷涂 MOS2 复合涂层 摩擦磨损 

分 类 号：TB332[一般工业技术—材料科学与工程]