华中科技大学学报（自然科学版）Issue(5)：25-29,5.DOI:10.13245/j.hust.140506
乏油润滑下Cr12表面不规则形貌的减摩研究
Study on anti-friction capability of irregular surface topography in starved-oil lubrication of Cr12
摘要
Abstract
To study the effect of irregular topography on friction performance of mold surface ,chemi-cal etching method ,which is simple and cost-effective ,was used to get three kinds of irregular surface topography of cold work die steel Cr12 .Then friction and wear experiments on samples with smooth surface topography and irregular surface topography were done in oil-starved condition respectively and friction coefficient and wear morphologies were got through the tests .The results demonstrate that irregular surface topography can reduce the friction coefficient effectively .Friction coefficient va-ries with the density of asperity peak contacts ,that is with a certain surface topography ,the more as-perity peak contacts there are ,the smaller the friction coefficient and the wear are .With the increase of the size and depth of corrosion pits on the surface ,friction coefficient experiences a fluctuation from increase to decline .Samples′surface hardness has a relative improvement after corrosion ,w hich en-hances their abrasive resistance .关键词
不规则形貌/乏油润滑/腐蚀坑/摩擦系数/磨损Key words
irregular surface topography/starved-oil lubrication/corrosion pit/friction coefficient/w ear分类
矿业与冶金引用本文复制引用
王敬,周杰,张建生,吴道祥..乏油润滑下Cr12表面不规则形貌的减摩研究[J].华中科技大学学报（自然科学版）,2014,(5):25-29,5.基金项目
国家自然科学基金资助项目（51275543）． （）
