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本文首先介绍了表面涂层的功能及其制备方法,着重对涂层各种制备方法的优缺点进行了讨论。其次介绍了涂层的主要失效形式,主要分为强度失效,磨损失效和腐蚀失效。最后介绍了涂层性能的评价方法,从涂层的微观结构,与基体的结合强度,硬度,耐腐蚀,抗高温,残余应力等性能指标提出了涂层性能的评价方法。
This paper first introduced the function of surface coating and its preparation method, focusing on the advantages and disadvantages of various preparation methods of the coating were discussed. Second introduced the main failure of the coating forms, divided into strength failure, wear failure and corrosion failure. Finally, the evaluation method of coating performance is introduced. The evaluation method of coating performance is proposed from the microstructure of coating, the bonding strength with substrate, hardness, corrosion resistance, high temperature resistance and residual stress.