Generation of Stress Corrosion Cracking Environments at Pipeline Surfaces

E.A. Charles; R.N. Parkins

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Generation of Stress Corrosion Cracking Environments at Pipeline Surfaces

机译：Generation of Stress Corrosion Cracking Environments at Pipeline Surfaces

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Consideration was given to how carbon dioxide (CO_2)-containing ground water, which can promote transgranular stress corrosion cracking of pipelines, can be converted to a higher pH, carbonate-bicarbonate (CO_3~(2-)HCO_3') solution that promotes intergranular cracking of pipelines. The lower pH environment will remain only if the cathodic protection generates insufficient hydroxide ions to convert the free CO_2 to . HCO_3 and/or CO_3~(2-). The generation of these ions also requires the transport of anions out of and cations into the solution contained between the pipe surface and its coating.

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来源
《Corrosion: The Journal of Science and Engineering》 |1995年第7期|518-527|共10页
作者
E.A. Charles; R.N. Parkins;
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作者单位

Materials Division, Department of Mechanical, Materials, and Manufacturing Engineering, University of Newcastle upon Tyne, Newcastle upon Tynes NE1 7RU, England.;

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原文格式 PDF
正文语种英语
中图分类金属腐蚀与保护、金属表面处理;
关键词
aqueous environments; cathodic protection; ground water; pipelines; stress corrosion cracking;

Generation of Stress Corrosion Cracking Environments at Pipeline Surfaces

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