观察了溅射Ni-9.7Cr-5.5Al-7Ti(质量分数)纳米晶涂层在高温氧化过程中的组织变化,探讨了溅射涂层表面氧化膜以及涂层预氧化90min后磨去生成的氧化膜再重新氧化生成氧化膜中TiO2的生长,认为溅射涂层氧化过程中Ni3(AlTi)相的析出与TiO2的生成长大有着密切关系,对两种不同情况下Ni3(AlTi)相对TiO2生长的影响机制进行了分析.
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