Corrosion by Sulfate Reducing Bacteria in Welded Joints of Stell API 5L X80

Abstract:

Articles report that the sulphate reducing bacteria (SRB) are the main micro-organisms related to cases of corrosion. They reduce the sulfate ion resulting in the production of sulfide, disulfide and hydrogen sulfide, potential agents of corrosion of ferrous materials. This study investigated the action of sulfate-reducing bacteria on corrosion test specimens with welded joint of API 5L X80 steel in the presence of seawater. The samples were exposed to sea and sterilized water was then added to BRS. Microorganisms were quantified periodically calculated the corrosion rate and weight loss, and the surfaces of the samples analyzed by light microscopy.

• Periodical: Materials Science Forum (Volume 869)
• Pages: 699-704
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.869.699
• Online since: August 2016
• Authors: E.S.L. Vasconcelos, Edkarlla Sousa Dantas de Oliveira, M.A.G.A. Lima, M. Montoya, Cezar Henrique Gonzalez, Severino Leopoldino Urtiga Filho
• Keywords: API 5L X80 Steel, Corrosion, SRB, Welded Joints

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