热喷涂涂层与基体结合界面研究进展

Progress in Research on Bonding Interface Between Thermal Spraying Coating and Substrate

热喷涂再制造过程中,由于材料原因,涂层与基体之间往往存在一个异质界面问题。异质界面的形成与存在对再制造涂层服役性能有非常重要的影响。本文综述了热喷涂涂层与基体结合界面的研究发展现状,主要是结合界面形成机理和结合界面对涂层性能影响的研究发展现状。分析了热喷涂涂层与基体结合界面研究目前还存在的问题,并针对这些问题提出采用新技术与新手段深入研究涂层与基体结合界面的生长形成过程,揭示结合界面形成机理,并利用新表征方法实现涂层与基体结合界面形貌结构定量化表征,构建结合界面与涂层各项性能之间量化关系等的发展建议,进而为实现涂层性能的设计控制及寿命预测奠定基础。

In the process of thermal spraying remanufacturing, a heterogenerous bonding interface al-ways exists between the coating and matrix due to the materials reason. And the formation and exist-ence of the bonding interface has a significant influence on the coating performance. In this paper, re-search progress on bonding interface between thermal spraying coating and substrate was summarized, mainly focused on the forming mechanism of bonding interface and its effect on coating performance. The problems on the research of bonding interface between the thermal spraying coating and substrate were analyzed, and aiming at these problems, some suggestions were put forward, such as adopting new technology and approaches to investigate the growing process of the bonding interface in order to reveal its forming mechanism, exploiting new characterization method to realize quantitative character-ization of bonding interface morphology and structure so as to build the quantitative relationship be-tween bonding interface and coating properties, and etc. and to lay foundation for the implementation on design and control of the coating properties and life prediction.