为了制备耐磨性和抗氧化性优良、结合力高的多元合金涂层,利用普通电火花机床通过液相脉冲放电法在调制态45钢基体上制备了(Ti,Al)C涂层,采用X射线衍射仪(XRD)分析了涂层的相组成,利用带有能谱分析仪的扫描电镜观察了涂层的界面组织、分析了涂层的元素成分,采用显微硬度计测试了涂层的硬度,采用摩擦磨损试验机考察了涂层的滑动磨损特性.结果表明:液相脉冲放电法制备的涂层厚约30 μm,主要物相为(Ti,Al)C,从涂层到基体,试样硬度呈梯度递减,涂层表面硬度高达2 100 HV以上;与淬火低温回火45钢配副时,摩擦系数较低且稳定;摩擦磨损试验载荷为100 ~ 200 N时,涂层表面出现轻微塑性变形,磨损机制为塑性流变;载荷为300~400 N时,涂层磨损面出现浅而细的平行状犁沟,磨损机制为轻微磨粒磨损.
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