Chapter
Dec 21, 2012
Simulation Evaluation of DC Interference Current Corrosion Based on Outflowing Current Density in Different Soil
Authors: Xinhua Chen [email protected], Hui Liu [email protected], Zhenhua Chen [email protected], Changfang Wu cfwu@ petrochina.com.cn, Hongyuan Chen [email protected], Weibin Wang [email protected], and Lingli Liu llliu@ petrochina.com.cnAuthor Affiliations
Publication: ICPTT 2012: Better Pipeline Infrastructure for a Better Life
Abstract
An indoor simulation equipment for DC interference corrosion was established to evaluate the relationship among outflowing current density, soil types and corrosion behavior of 16MnR steel. The influence of testing mode for that equipment was also investigated. The results show that: (1)The mode of "constant current cathodic protection & constant DC current interference" was the best operating mode of the indoor simulation equipment; (2) the corrosion behavior of DC stray interference was dominated by the DC interference intensity, while the influence of soil which hardens performance on corrosion behavior was significant; (3) the corrosion rate was proportional to the outflowing DC current density of specimen, but the characteristics of localized corrosion was more obvious with the increase of the corrosivity of soil.
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Published In
ICPTT 2012: Better Pipeline Infrastructure for a Better Life
Pages: 101 - 112
Copyright
© 2013 American Society of Civil Engineers.
History
Published online: Dec 21, 2012
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Affiliations
Senior Engineer, Petrochina Pipeline R&D Center, No. 51, Jinguang Road, Langfang, 065000. E-mail: [email protected]
Master Student, Department of Material Science, China University of Petroleum, Beijing, 102249; Petrochina Pipeline R&D Center. E-mail: [email protected]
engineer, Petrochina Pipeline R&D Center, No. 51, Jinguang Road, Langfang, 065000. E-mail: [email protected]
engineer, Petrochina Pipeline R&D Center, No. 51, Jinguang Road, Langfang, 065000. E-mail: cfwu@ petrochina.com.cn
Senior Engineer, Petrochina Pipeline R&D Center, No. 51, Jinguang Road, Langfang, 065000. E-mail: [email protected]
Senior Engineer, Petrochina Pipeline R&D Center, No.51, Jinguang Road, Langfang, 065000. E-mail: [email protected]
Professor, Petrochina Pipeline R&D Center, No. 51, Jinguang Road, Langfang, 065000. E-mail: llliu@ petrochina.com.cn
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