کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10415305 | 897390 | 2005 | 18 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Corrosion in a buried pressurised water pipeline
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی صنعتی و تولید
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چکیده انگلیسی
Premature and frequent failures by rapid corrosion in a pressurised underground bitumen coated mild steel ERW water pipeline were investigated. Metallurgical and chemical characterisation of the corroded region as well as the corrosion products did not show any unusual behaviour. The soil adjacent to the pipe was also found to be only mildly aggressive in terms of the redox potential, pH, water-soluble chloride and sulphate ion concentrations and concentration of sulphate-reducing bacteria and acid-producing bacteria over the entire length of the pipe. However, soil surface potential gradient survey and pipe-to-soil potential measurements at various locations along the pipeline as a function of time indicated the presence of stray currents. The rapid and frequent failures observed are promoted by stray current corrosion.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Failure Analysis - Volume 12, Issue 4, August 2005, Pages 634-651
Journal: Engineering Failure Analysis - Volume 12, Issue 4, August 2005, Pages 634-651
نویسندگان
S. Srikanth, T.S.N. Sankaranarayanan, K. Gopalakrishna, B.R.V. Narasimhan, T.V.K. Das, Swapan Kumar Das,