کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10628709 | 990402 | 2005 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Reproducibility of corrosion parameters for the acidic dissolution of pure iron: potentiostatic polarisation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Polarisation curves were determined potentiostatically for pure polycrystalline iron corroding in oxygen-free 0.5Â M H2SO4. Four different working electrode pre-treatments (abrasion/polishing, pre-polarisation and time to establish Ecorr) were employed and the reproducibility of Ecorr and calculated corrosion parameters (icorr, Tafel slopes and i0) for each treatment was determined. Electrode pre-treatment effects changes in working electrode catalytic activity with subsequent variation in the reproducibility of polarisation curves and measured and calculated corrosion parameters. A method incorporating abrasion/polishing followed by anodic/cathodic pre-polarisation resulted in general in improved parameter reproducibility and cathodic and anodic Tafel slopes close to those predicted by the reaction mechanisms.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Corrosion Science - Volume 47, Issue 6, June 2005, Pages 1520-1533
Journal: Corrosion Science - Volume 47, Issue 6, June 2005, Pages 1520-1533
نویسندگان
D. Paul Schweinsberg, Harvey J. Flitt,