Influence of Gradient Index and Pores on the Properties and Internal Stress of Continuous Transition Ceramic–Metal Coating

Thermal-sprayed ceramic coatings are widely used in industry due to their favorable mechanical properties. However, traditional prone failure the differences physical properties between bonding coating and coating. In order solve this problem, a continuous transition zone was introduced coating, then air plasma spraying prepare coatings. The Vickers hardness analysis results show that existence of made change more gradual. To understand stress distribution inside models were established express interface metal zone. Simulation found can significantly reduce gradient index also has great influence on model. SEM (Scanning Electron Microscope) many pores coating; modeling simulating internal showed at interface.