Abstract In this paper, hot corrosion behaviour of the Aluminum Rare Earth coating in mixed sulphate at 1050 °C was investigated. Results demonstrated that during the first 20 h of hot corrosion, it was difficult to form a protective oxide scale on the coating surface, and the antioxidant element Al was consumed significantly. Meanwhile, it took more than 50 h to reach to the steady-state oxidation which lasted only for 10 h. It is clearly demonstrated that, the molten salt at temperature more than 1000 °C, not only acts as hot corrosion media, but also will chemically attack the coating surface.

中文翻译：

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铝稀土涂层在1050℃混合硫酸盐中的热腐蚀行为研究

摘要 本文研究了铝稀土涂层在1050 ℃混合硫酸盐中的热腐蚀行为。结果表明，在热腐蚀的前 20 h 内，涂层表面难以形成保护性氧化皮，抗氧化元素 Al 被大量消耗。同时，达到稳态氧化需要 50 多小时，仅持续 10 小时。清楚地表明，温度超过 1000°C 的熔盐不仅作为热腐蚀介质，而且会化学腐蚀涂层表面。