Corrosion behavior of API 5L X65 steel subject to plastic deformation

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Journal of Materials Research and Technology, ISSN: 2238-7854, Vol: 7, Issue: 3, Page: 314-318

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Mariana Cristina de Oliveira; Rodrigo Monzon Figueredo; Heloisa Andréa Acciari; Eduardo Norberto Codaro
Elsevier BV
Materials Science
article description
The API 5L X65 steel is widely used as one of the most economical and safe ways of transporting oil and gas. The significant number of accidents caused by failures of pipelines is due to corrosion. Plastic deformation can modify the mechanical properties of these pipelines, so study the steel's corrosive behavior when deformed plastically is important to avoid failures. In this research, samples were taken from a region free of solder and plastically deformed from 0 to 2.5% in a tensile machine. The samples were analyzed by chemical and electrochemical tests in NACE 177-A solution. It was concluded that the corrosion resistance was not affected by the different conditions of plastic deformation.