Abstract Cubic YSZ coating and compositionally graded Ni-YSZ nanocomposite coating have been developed on Inconel-690 using electron beam physical vapor deposition technique to act as a chemical diffusion barrier. The microstructure and chemical composition of the graded coating have been characterized by X-ray diffraction, atomic force microscopy, scanning electron microscopy, electron probe microanalysis, X-ray photoelectron spectroscopy and secondary ion mass spectroscopy techniques. Electrochemical corrosion study was carried out in 3 M HNO 3 medium and it was found that compositionally graded Ni-YSZ coating heat treated at 1273 K in air showed superior corrosion resistance than as-deposited compositionally graded Ni-YSZ and YSZ coatings on Inconel-690 substrate.

中文翻译：

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Inconel-690 上用于高温环境的成分梯度 Ni-YSZ 扩散阻隔涂层的合成、微观结构和腐蚀行为

摘要 使用电子束物理气相沉积技术作为化学扩散屏障，在 Inconel-690 上开发了立方 YSZ 涂层和成分梯度 Ni-YSZ 纳米复合涂层。梯度涂层的微观结构和化学成分已通过 X 射线衍射、原子力显微镜、扫描电子显微镜、电子探针微量分析、X 射线光电子能谱和二次离子质谱技术表征。在 3 M HNO 3 介质中进行电化学腐蚀研究，发现在空气中以 1273 K 热处理的成分梯度 Ni-YSZ 涂层比 Inconel-690 上沉积的成分梯度 Ni-YSZ 和 YSZ 涂层具有更好的耐腐蚀性基质。