کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1470967 990338 2010 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The behaviour of second phase particles during anodizing of aluminium alloys
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
The behaviour of second phase particles during anodizing of aluminium alloys
چکیده انگلیسی

Several model second phase particles and a practical alloy (AA7075-T6) have been anodized in chromic and sulphuric acid to disclose the relation between particle composition, electrolyte nature and oxidation behaviour. Generally, magnesium-containing second phases are readily oxidized, because the presence of sufficient magnesium hinders the formation of a stable oxide, while copper- and iron-containing particles oxidize at reduced rates and support a relatively stable oxide. At low potential, in chromic acid, the oxidation rate of magnesium-containing particles is reduced, due to passivation induced by chromate anions. Conversely, for particles containing only copper and/or iron, chromate anions increase the oxidation rate.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Corrosion Science - Volume 52, Issue 7, July 2010, Pages 2489–2497
نویسندگان
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