Abstract ZnAl coatings are known to provide reliable corrosion protection for low-grade structural steels in most environments. Depending on the coating process, different phase compositions can be observed in such coatings. In case of thermal spraying, the high cooling rates were proven to result in the formation of metastable β-ZnAl for the first time in literature. To assess the influence on the corrosion behaviour, β-ZnAl and α-η-ZnAl samples were produced and corroded in a salt spray test. A pronounced influence of the phase composition on the formation of layered double hydroxides was observed.

中文翻译：

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设计 ZnAl15 的腐蚀产品：智能腐蚀防护涂层的新方法？

摘要 众所周知，ZnAl 涂层可为大多数环境中的低等级结构钢提供可靠的腐蚀保护。根据涂层工艺，可以在此类涂层中观察到不同的相组成。在热喷涂的情况下，文献中首次证明高冷却速率导致亚稳态 β-ZnAl 的形成。为了评估对腐蚀行为的影响，制备了 β-ZnAl 和 α-η-ZnAl 样品并在盐雾试验中腐蚀。观察到相组成对层状双氢氧化物形成的显着影响。