摘要
采用粉末冶金技术制备出了纳米NbSe2-铜基复合材料,并用UTM-2型微观摩擦磨损试验机测试复合材料在不同载荷下的摩擦磨损性能,用扫描电子显微镜分析了复合材料磨痕形貌。结果表明,纳米NbSe2的加入在摩擦表面形成一层完整的纳米Nb-Se2润滑膜,使铜合金基体在各个载荷下的摩擦系数变得较为平稳,且能增强复合材料的承载能力。但由于NbSe2纳米粉末的加入,使基体较软,纳米粒子损失较快,以致磨损量有所增加。
Abstract： Nano-NbSe2-containing copper-based composites were synthesized by a process of powder metallurgy. The friction and wear performance of the composites were investigated by UMT - 2 Multi-specimen test system. The worn sur- face morphologies of the composites were observed using scanning electron microscope. It was found that the incorpora- tion of NbSe2 nanoparticles contributed to formation of a layer of nano-NbSe2 lubricating film on the friction surface. The film made the friction coefficients steady under different loads and improved the load capacity of the composites. However, the addition of NbSe2 nanoparticles softened the matrix and caused quick loss of the nanoparticles, whereby the wear increased.
出处
《矿冶工程》
CAS
CSCD
北大核心
2008年第2期79-82,共4页
Mining and Metallurgical Engineering
基金
国家自然科学基金(50471051)
作者简介
李长生（1957-），男，吉林长春人，教授，博导，主要从事摩擦学及固体润滑、表面改性、复合材料方面的研究。
