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采用 3kW射频电源在经真空电弧镀涂敷了NiCrAlY过渡层的涡轮和导向叶片上沉积ZrO2 陶瓷层 ,对其组织结构与元素面分布进行了电子探针测试。对NiCrAlY涂层进行喷丸形变处理 ,研究了不同时效温度下的应力变化。测试了热障涂层高温氧化与热冲击性能 ,结果表明 ,经 110 0℃静态氧化 10 0h和热冲击 50 0次陶瓷层未剥落
The 3kW RF power was used to deposit the ZrO2 ceramic layer on the turbine and guide vane coated with NiCrAlY transition layer by vacuum arc plating. The microstructure and surface distribution of the ZrO2 ceramic layer were tested by electronic probe. The shot peening of NiCrAlY coating was carried out to study the stress changes under different aging temperatures. The thermal oxidation and thermal shock properties of the thermal barrier coating were tested. The results show that the ceramic layer does not peel after the static oxidation at 110 ℃ for 10 h and the thermal shock