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采用电弧离子镀技术在IC-6高温合金上沉积NiCrAlY涂层.研究了NiCrAlY涂层及IC-6高温合金在室温和600℃空气中无润滑状态下,以K17高温合金为摩擦副的摩擦特性.采用带有能谱的扫描电镜（SEM/EDX）分析IC-6高温合金和NiCrAlY涂层磨损表面的形貌和成分.实验结果表明,室温条件下摩擦时,一些碎屑从K17合金上脱落下来,在IC-6合金及NiCrAlY涂层表面上形成磨粒.随着摩擦时间延长,磨损表面元素发生氧化.试样在环境温度为600℃摩擦时,NiCrAlY涂层的表面比较快的形成氧化膜,减少金属-金属间的直接接触.环境温度升高后,摩擦表面温度也随之升高,氧化物的粘滞性增强,600℃时,合金和涂层摩擦系数都有不同程度的减小.
The NiCrAlY coating was deposited on the IC-6 superalloy by arc ion plating technique.The tribological properties of the NiCrAlY coating and the IC-6 superalloy at room temperature and 600 ℃ in the air without lubrication were investigated. The morphology and composition of the wear surface of IC-6 superalloys and NiCrAlY coatings were analyzed by scanning electron microscopy (SEM / EDX) .The experimental results show that some debris dislodged from the K17 alloy when rubbed at room temperature Next, abrasive grains were formed on the surface of the IC-6 alloy and the NiCrAlY coating. As the friction time prolonged, the wear surface elements were oxidized. The surface of the NiCrAlY coating quickly formed oxidation when the sample was rubbed at an ambient temperature of 600 ° C Film, to reduce the metal - metal direct contact.After the ambient temperature increases, the friction surface temperature also increases, the viscosity of the oxide increases, 600 ℃, the alloy and the coating friction coefficient is reduced to varying degrees small.