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Effects of solution composition on corrosion behavior of 13 mass% Cr martensitic stainless steel in simulated oil and gas environments

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Title: Effects of solution composition on corrosion behavior of 13 mass% Cr martensitic stainless steel in simulated oil and gas environments
Authors: Sakairi, Masatoshi Browse this author →KAKEN DB
Mizukami, Hirotaka Browse this author
Hashizume, Shuji Browse this author
Keywords: 13 mass% Cr martensitic stainless steel
CH3COONa
CO2
XPS
GDS
oxide film structure
Issue Date: 8-Apr-2019
Publisher: American Institute of Mathematical Sciences (AIMS)
Journal Title: Aims materials science
Volume: 6
Issue: 2
Start Page: 288
End Page: 300
Publisher DOI: 10.3934/matersci.2019.2.288
Abstract: The effects of CH3COONa and CO2 on the corrosion behavior of 13 mass% Cr martensitic stainless steel in simulated oil and gas environments were investigated with electrochemical and surface analysis techniques. The electrochemical results showed that a plateau region and sudden increase in the current density of the anodic polarization curves. The current density of the plateau region decreased with increasing CH3COONa concentrations. The pitting corrosion potential shifted to the positive direction with increasing CH3COONa concentrations, and shifted to a negative value by adding CO2. From the surface analysis, a Cr enriched layer had formed on the sample surface after immersion tests, and the thickness of this layer became thinner with increasing CH3COONa concentration. The surface analysis results after the immersion tests suggested the presence of CH3COO- or HCO3- on the surface.
Rights: https://creativecommons.org/licenses/by/4.0/
Type: article
URI: http://hdl.handle.net/2115/74445
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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