环氧/聚氨脂梯度功能耐磨涂层性能的有限元分析  

Finite Element Analysis of Wear-resistance of Epoxy/Polyurethane Functional Gradient Coating

作　　者：李慧君[1] 许荔[1] 江晓禹[1] 

机构地区：[1]西南交通大学应用力学与工程系,四川成都610031

出　　处：《机械工程材料》2008年第7期79-81,86,共4页Materials For Mechanical Engineering

基　　金：教育部重点科技研究资助项目(103144);四川省青年基金资助项目

摘　　要：用有限元模拟纳米压痕和划痕试验,对Q235钢基体上制备的不同厚度环氧/聚氨脂梯度功能涂层的硬度和摩擦性能进行了分析。结果表明:涂层厚度对梯度功能涂层的性能有很大的影响,厚度为5.5μm梯度功能涂层的性能要优于厚度为11.0μm和22.0μm的涂层;三种涂层的硬度分别为45.6,36.4和29.3 GPa,摩擦因数分别为0.024,0.036和0.057;涂层厚度越小,耐磨性能越好。Finite-element method was used to simulate the nano-indentation and nano-scratch tests.The hardness and frictional behaviors of the epoxy/polyurethane functional gradient coatings with different thicknesses on Q235 steel substrate were comparatively investigated.The results showed that thickness palyed an important role in the properities of coating.The 5.5 μm coating had better propertices than the 11.0 μm and 22.0 μm coating.For the coating with different thicknesses of 5.5 μm,11.0 μm and 22.0 μm,the hard...

关 键 词：环氧/聚氨脂 梯度功能材料 涂层 厚度 耐磨性能 

分 类 号：TB34[一般工业技术—材料科学与工程]