摘要
对微纳米层状硅酸盐矿物粉的摩擦学性能进行了研究。将微纳米层状硅酸盐矿物质量比为0.5%分散在汽油机润滑油SJ10W/40中,利用摩擦磨损实验机考察其减摩抗磨及自修复性能,与润滑油SJ10W/40进行对比。采用扫描电子显微镜(SEM)分析试样磨痕表面的形貌和元素组成,并进行了EDS能谱分析。试验结果表明:与润滑油SJ10W/40相比,含层状硅酸盐矿物油样润滑的摩擦副,摩擦因数降低了71.6%。SEM分析表明磨痕处有着与基体材料不同的修复区域,该修复区域沉积着Si、Mg等元素。这些说明微纳米层状硅酸盐矿物润滑材料具有优良的减摩抗磨和自修复性能。
The tribological performance and self-repairing of micro- and nano-phyllosilicate mineral powder were studied, and the mechanism of its performance was analyzed. Micro- and nano-phyllosilicate mineral was dispersed in lubrication oil SJ 10W/40 with the mass ratio of 0.5%. Its resistance to abrasion and antifriction performance on the 45 steel friction pairs was examined by the friction and wear tester as comparing with that of the lubrication oil SJ10W/40. The surface morphologies and elementary composition of grinding cracks of the sample were analyzed by Scanning Electron Microscope （SEM） and Energy Dispersive Spectrometer （EDS）. The test results show the friction coefficient decreases 71.6% after adding phyllosilicate mineral to lubrication oil as comparing with lubrication oil SJ10W/40. The SEM analysis indicate that there presents a repairing layer whose material is very different from the substrate material on the grinding cracks after the long-term wear test. In addition, Si, Mg and other elements are deposited on the repairing layer, which means that the micro- and nano-phyllosilicate mineral possesses superior performance of resistance to abrasion, antifriction and self repairing effect.
出处
《中国表面工程》
EI
CAS
CSCD
北大核心
2009年第1期29-32,36,共5页
China Surface Engineering
基金
国家自然科学基金重点项目(50735006)
军队项目(9140A270302060C8501)
关键词
层状硅酸盐
减摩抗磨
润滑材料
自修复
phyllosilicate
anti-friction and anti-wear
lubricating material
self-repairing
