摘要
金属构件是各种机器的必要组成部分,金属构件的磨损是机器失效的主要原因.金属构件表面织构技术作为提高金属材料表面摩擦学性能的方法,在机械、航天、化学、冶金和生物工程等很多领域已经被广泛应用.文章对相关研究成果进行了总结,重点对金属构件表面织构在干摩擦、边界润滑和流体润滑 3 种主要润滑形式下的减摩机理展开了讨论;揭示了金属构件表面织构在不同润滑形式下的主要减摩机理;归纳了金属构件表面织构的几何特征对其改善摩擦学性能的影响,包括织构的形状、深度、面密度和排列方式.文章还分析了各几何特征的最佳值及其与摩擦学性能的一般规律,发现几何参数合理的金属构件表面织构对降低金属构件表面摩擦系数,提高抗磨性能和油膜承载能力具有积极作用,且各种几何特征对金属构件表面织构摩擦学性能的提高是相互影响的.
Abstract
Metal components are a necessary part of various machines,and the wear and tear of metal components is the main cause of machine failure.As a method to improve the surface tribological properties of metal materials,the surface texture technology of metal components has been widely used in many fields,such as mechanical,aerospace,chemical,metallurgical and biological engineering.This paper summarizes the relevant research results,discusses the dry friction,boundary lubrication and fluid lubrication,and the main friction mechanism of the surface texture,including the shape,depth,surface density and arrangement of the structure.Analyzed the best value of the geometric characteristics and the general law of tribological performance,found that the geometric parameters of reasonable metal component surface texture to reduce the coefficient of friction,improve the wear resistance and oil film bearing capacity has a positive effect,and all kinds of geometric features on the performance of metal component surface texture friction is mutual influence.
基金项目
国家自然科学基金面上项目(52175408)
山东省自然科学基金重点项目(ZR2020KE022)
山东省自然科学基金面上项目(ZR2021ME183)
NETL
NSTL
万方数据