Corrosion Behavior of Duplex Stainless Steels (2205) in Seawater in the Presence of Deep Sea Bacteria

John Gerald Odhiambo; Li Zhang; Tao Liu; Li Hua Dong; Yan Sheng Yin

doi:10.4028/www.scientific.net/AMM.513-517.189

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 513-517Corrosion Behavior of Duplex Stainless Steels...

Corrosion Behavior of Duplex Stainless Steels (2205) in Seawater in the Presence of Deep Sea Bacteria

Abstract:

The corrosion behavior of duplex stainless steel immersed in nutrient-rich simulated seawater without deep sea bacteria and with deep sea bacteria (Erythrobacter pelagi sp.nov) was studied. The effect of chloride ions and presence of deep sea bacteria on corrosion resistance was investigated. The occurrence of localized corrosion (Viz. pitting and crevice corrosion) was examined using visual inspection and SEM-EDX. Electrochemical impedance spectra were used to study the effects of deep sea bacteria on duplex stainless steel and inferences were made. Most significantly was the reduction of pitting resistance potential with increase in exposure time.

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Periodical:

Applied Mechanics and Materials (Volumes 513-517)

Pages:

189-192

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.513-517.189

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Online since:

February 2014

Authors:

John Gerald Odhiambo*, Li Zhang, Tao Liu, Li Hua Dong, Yan Sheng Yin

Keywords:

Duplex Stainless Steel (DSS), Microbiologically Influenced Corrosion (MIC), Seawater

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