کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
182335 | 459423 | 2008 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The effect of acetic acid on the pit propagation in CO2 corrosion of carbon steel
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: The effect of acetic acid on the pit propagation in CO2 corrosion of carbon steel The effect of acetic acid on the pit propagation in CO2 corrosion of carbon steel](/preview/png/182335.png)
چکیده انگلیسی
The role of acetic acid (HAc) on the pit growth in CO2 corrosion of carbon steel pipelines is studied by means of an artificial pit electrode. The current flowing between the artificial pit and the outer surface was measured with a zero resistance ammeter. It is shown that the corrosion potential increases with increasing HAc concentration. Depletion of HAc inside the pit imposed a potential difference that triggered the pit growth. The pit did not grow in absence of HAc. The pit growth was self-sustained only to a certain pit depth, beyond which the dissolution current at the bottom of the pit vanished. This is in good agreement with field observations mainly in the case of top-of-line corrosion phenomena.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochemistry Communications - Volume 10, Issue 2, February 2008, Pages 200–203
Journal: Electrochemistry Communications - Volume 10, Issue 2, February 2008, Pages 200–203
نویسندگان
J. Amri, E. Gulbrandsen, R.P. Nogueira,