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
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
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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
Journal: Corrosion Science - Volume 49, Issue 3, March 2007, Pages 1559–1569
نویسندگان
I. Danilidis, J. Hunter, G.M. Scamans, J.M. Sykes,