金刚石与磨料磨具工程2011，Vol.31Issue(2)：79-83,5.DOI:10.3969/j.issn.1006-852X.2011.02.018
纳米SiC微粒作为润滑油添加剂对钢/钢摩擦副磨损机制转变影响的研究
Effects of SiC nanoparticles as additive in lubricating oil on wear mechanisms transition of steel/steel coupling
摘要
Abstract
SiC nanoparticles were added into engine oil as additive, friction and wear test was conducted on M200 model friction and wear testing machine within a load of 400 to 1 300 N and a sliding speed range of 0.42 ～ 0.84 m/s.Through careful analysis of the worn surface by scanning electron microscope (SEM) and energy dispersive spectroscopy (EDS), effects of SiC nanoparticles on wear mechanisms transition of steel/steel coupling and the wear mechanism transition map was established.The results show that SiC nanoparticales increase the wear of loss because lubrication film is destroyed under low load and sliding speed conditions.With high load and high sliding speed, SiC nanoparticales prevent the rubbing surfaces from coming into direct contact, and act as ball bearing between two mutuall sliding surfaces which leads to micro-rolling wear from macro-sliding wear, so that severe adhesive wear is inhibited, the wear loss is reduced and the load-carrying capacity of engine oil is improved in the bad environment.关键词
纳米SiC微粒/润滑油添加剂/钢/钢摩擦副/抗黏着磨损Key words
SiC nanoparticles/ additive in lubricating oil/ steel/steel coupling/ adherence-resistance分类
矿业与冶金引用本文复制引用
李亚娟,贾鹏,董允,林晓娉..纳米SiC微粒作为润滑油添加剂对钢/钢摩擦副磨损机制转变影响的研究[J].金刚石与磨料磨具工程,2011,31(2):79-83,5.基金项目
中国民航大学科研基金项目(05yk24s) （05yk24s）
