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Corrosion associated with alternating current (AC) interference on buried steel pipelines. AC corrosion characteristics and proposed mechanisms. Approaches to protection and monitoring.
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This technical committee report represents the current understanding of the corrosion phenomenon associated with alternating current (AC) interference on buried steel pipelines. The purpose of this state-of-the-art report is to begin the development of corrosion protection criteria with regard to AC corrosion. The report addresses AC corrosion characteristics and proposed mechanisms and describes the currently used approaches to protection and monitoring. It is intended for use by pipeline operators and others concerned with control of AC corrosion. Keywords: AC Corrosion, Mitigation, Pipelines, Cathodic Protection
HISTORICAL DOCUMENT. Assessing corrosion in the field. New: long-range ultrasonic testing (UT), fiber optic strain gauges; high-resolution electrical resistance (ER), a new method of hydrogen probe monitoring, and extended-analysis coupons.
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