نوع مقاله : مقاله مروری
نویسندگان
1 گروه نانوفناوری رنگ- پژوهشگاه رنگ
2 دانشجوی کارشناسی ارشد، دانشکده مهندسی متالورژی و مواد، دانشکدگان فنی دانشگاه تهران، دانشگاه تهران، تهران، ایران، صندوق‌پستی 4563-11155.
3 استاد و عضو هیات علمی، آزمایشگاه جنبه‌های مکانیکی خوردگی، دانشکده مهندسی متالورژی و مواد، دانشکدگان فنی دانشگاه تهران، دانشگاه
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
The aim of this review article is to examine the application of oxide nanoparticle pigments in plasma electrolytic oxidation (PEO) coatings for improving corrosion resistance in metallic alloys, especially aluminum and its alloys. This article investigates the effects of various oxide nanoparticle pigments, including V₂O₅, TiO₂, ZnO, Fe₂O₃, and MoS₂, which have been introduced as additives in PEO electrolytes. The results of conducted studies show that the addition of these nanoparticle pigments to PEO electrolytes leads to a reduction in coating porosity, an increase in hardness, and an improvement in both corrosion and wear resistance. Specifically, oxide nanoparticle pigments such as V₂O₅ and TiO₂ significantly enhance corrosion resistance and electrochemical stability by promoting the formation of resistant phases like α-Al₂O₃ in the coatings. Additionally, ZnO and Fe₂O₃, by reducing porosity and increasing coating density, show positive effects on wear resistance and corrosion resistance in corrosive environments. This article also discusses the challenges and limitations of using oxide nanoparticle pigments in the PEO process.
کلیدواژه‌ها [English]
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