Abstract In the present work, a flash-PEO coating is developed on AZ31B alloy in a combination of silicate, phosphate, and fluoride based electrolyte in order to offer a green alternative to chromate conversion coatings. Multilevel active protection is achieved through synergetic combination of self-sealing effect of PEO coating itself and active inhibition provided by an organic inhibitor impregnated in PEO pores in a post-treatment step. The results indicate that flash-PEO coatings, loaded with organic corrosion inhibitors, can be recommended for exploitation on industrial level as an equally effective corrosion protection system alternative to CCC for paint-bearing and paint-free applications.

中文翻译：

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Flash-PEO 作为铬酸盐转化涂层的替代品，用于镁合金的腐蚀保护

摘要 在目前的工作中，在 AZ31B 合金上以硅酸盐、磷酸盐和氟化物为基础的电解液开发了一种闪蒸 PEO 涂层，以提供铬酸盐转化涂层的绿色替代品。多级主动保护是通过将 PEO 涂层本身的自密封效果与后处理步骤中浸渍在 PEO 孔中的有机抑制剂提供的主动抑制协同组合来实现的。结果表明，装载有机缓蚀剂的闪蒸 PEO 涂层可推荐用于工业层面的开发，作为替代 CCC 的同样有效的腐蚀保护系统，用于带漆和无漆应用。