Journal of Materials Research and Technology Journal of Materials Research and Technology
J Mater Res Technol 2018;7:314-8 DOI: 10.1016/j.jmrt.2018.02.006
Original Article
Corrosion behavior of API 5L X65 steel subject to plastic deformation
Mariana Cristina de Oliveira, , Rodrigo Monzon Figueredo, Heloisa Andréa Acciari, Eduardo Norberto Codaro
São Paulo State University, School of Engineering, Guaratinguetá, SP, Brazil
Received 20 November 2017, Accepted 23 February 2018
Abstract

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.

Keywords
API 5L X65, Plastic deformation, Corrosion, Electrochemical
J Mater Res Technol 2018;7:314-8 DOI: 10.1016/j.jmrt.2018.02.006
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