کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10628645 | 990397 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Passivity breakdown and stress corrosion cracking of α-brass in sodium nitrite solutions
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Passivity breakdown and stress corrosion cracking of α-brass in sodium nitrite solutions Passivity breakdown and stress corrosion cracking of α-brass in sodium nitrite solutions](/preview/png/10628645.png)
چکیده انگلیسی
The stress corrosion cracking (SCC) susceptibility of pure copper and four α-brasses of different zinc alloy concentration in NaNO2 1 M solution, at various pH values, was studied by means of potentiodynamic polarisation curves and constant potential slow strain rate experiments. The results confirmed that passivity rupture was a necessary condition for SCC of α-brass and copper in nitrite solutions. Susceptibility to SCC was observed only when the potential was equal to or higher than a certain critical value at which passivity breakdown was triggered by the slow dynamic straining of the metal. Cracks were found only in those metal areas where passivity rupture had taken place.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Corrosion Science - Volume 47, Issue 7, July 2005, Pages 1643-1652
Journal: Corrosion Science - Volume 47, Issue 7, July 2005, Pages 1643-1652
نویسندگان
M.G. Alvarez, P. Lapitz, S.A. Fernández, J.R. Galvele,