利用火焰喷涂在不同预热温度制备了FEP涂层,评价了环境温度对涂层摩擦学性能的影响,并对涂层进行了XRD、SEM等分析.结果表明:FEP涂层的最佳预热温度为270℃,此时涂层与基材的结合面上缺陷很少.FEP粉末和涂层中都含有无定形和结晶相,形成涂层后的结晶度有了明显的提高;环境温度在200℃以下时,涂层摩擦因数变化不大;200℃以后摩擦因数迅速增大,且涂层的磨损率随着环境温度的升高而增大;在较高的环境温度下,涂层的磨损呈现出明显的疲劳磨损特征.
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