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

Abstract

In the process of thermal spraying remanufacturing,a heterogenerous bonding interface always exists between the coating and matrix due to the materials reason.And the formation and existence of the bonding interface has a significant influence on the coating performance.In this paper,research 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 characterization of bonding interface morphology and structure so as to build the quantitative relationship between 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.

Keywords

• remanufacturing
• bonding interface
• thermal spraying
• coating