کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1471877 990363 2007 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of inorganic additions on the performance of manganese-based conversion treatments
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Effects of inorganic additions on the performance of manganese-based conversion treatments
چکیده انگلیسی

The electrochemical behaviour of permanganate-based no-rinse conversion coatings on AA3003-H14 aluminium alloy shows that they have promise as an alternative to toxic chromate-based coatings. A selection of inorganic additions has been made here to a simple 0.1 M KMnO4 formulation investigated previously. The performance of the different coatings has been evaluated from potential–time and polarisation measurements in 0.5 wt % (0.085 M) NaCl solution for periods up to 3 days. The addition of fluoride ions produced no benefit, whereas Al(NO3)3 shows an improvement when added in small amounts. Tests with the individual ions reveal that it is Al3+ cations, rather than NO3- anions, which produce the greatest benefit.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Corrosion Science - Volume 49, Issue 3, March 2007, Pages 1559–1569
نویسندگان
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