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Plasma electrolytic oxidation (PEO) coatings have emerged as a promising method to enhance the corrosion resistance of light alloys, which are widely employed in the aerospace, automotive, and biomedical industries due to their favorable specific strength and biocompatibility. Recent innovations in PEO coatings emphasize the development of electrical parameters, novel electrolytes, incorporation of nano/micro-sized particles, and application of functional coating systems to improve their anticorrosion properties. This chapter aims to contribute to ongoing research and development efforts focused on optimizing PEO coatings upon Al and Mg alloys by reviewing the state-of-the-art, identifying key challenges, and outlining future directions.

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Advancements in Anticorrosion Plasma Electrolytic Oxidation Coatings for Light-Weight Alloys: Al and Mg Alloys

  • 章节

  • 发表日期：

    2025年

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  • Xiaopeng Lu,
  • Qianqian Chen,
  • Jirui Ma,
  • Yufei Xie,
  • Xiaobo Chen,
  • Beatriz Mingo,
  • Fuhui Wang

摘要

Plasma electrolytic oxidation (PEO) coatings have emerged as a promising method to enhance the corrosion resistance of light alloys, which are widely employed in the aerospace, automotive, and biomedical industries due to their favorable specific strength and biocompatibility. Recent innovations in PEO coatings emphasize the development of electrical parameters, novel electrolytes, incorporation of nano/micro-sized particles, and application of functional coating systems to improve their anticorrosion properties. This chapter aims to contribute to ongoing research and development efforts focused on optimizing PEO coatings upon Al and Mg alloys by reviewing the state-of-the-art, identifying key challenges, and outlining future directions.