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5.5 μm梯度功能涂层的性能要优于厚度为11.0 μm和22.0 μm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.
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