A triple-layered slurry aluminide coating was prepared on Super304H, composed of Al-rich FeAl layer, Fe-rich FeAl layer and α-Fe(Cr, Al, Ni) interdiffusion layer dispersed with (Ni, Fe)Al particles from outer to inner. Oxidation and degradation process of the coating has been investigated at 600 °C~650 °C in steam, by scanning electron microscopy (SEM) and transmission electron microscope (TEM). Results showed an extremely thin α-Al₂O₃ scale was formed on the coating. The microstructural degradation of the aluminide coating occurred due to phase transformation from FeAl to α-Fe and (Ni, Fe)Al particles near the interface between the FeAl layer and the interdiffusion zone. Related mechanisms were discussed.

在Super304H上制备了三层浆料铝化物涂层，该涂层由富铝的FeAl层，富铁的FeAl层和从外向内分散有（Ni，Fe）Al颗粒的α-Fe（Cr，Al，Ni）互扩散层组成内。通过扫描电子显微镜（SEM）和透射电子显微镜（TEM）研究了在600°C〜650°C的蒸汽中涂层的氧化和降解过程。结果表明极薄的α-Al ₂ ö ₃上形成的涂层的规模。铝化物涂层的微观结构退化是由于在FeAl层和互扩散区之间的界面附近从FeAl转变为α-Fe和（Ni，Fe）Al颗粒而引起的。讨论了相关机制。