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ISSN(Print): 1598-6462
ISSN(Online): 2288-6524
Issue: Bimonthly (2,4,6,8,10,12)
Type: Journal
Language: English/Korean
History: v1 n1 Feb. 2002
Index:ESCI (since 2017)
KCI (since 2019)
Scopus (since 2019)
Date: December 31, 2020
Vol: 19, Issue: 6
This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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[Research Paper]
Control of Galvanic Corrosion Between A516Gr.55 Steel and AA7075T6 Depending on NaCl Concentration and Solution Temperature
S. Y. Hur, J. M. Jeon, K. T. Kim, Y. S. Kim
Keywords: Carbon steel, AA7075T6, Galvanic corrosion, NaCl concentration, Solution temperature
Corros. Sci. Tech. , 2020, 19(6) pp. 281-287
® 10.14773/CST.2020.19.6.281
Web Viewer Full-Text Download (1.9 MB)
Received: December 15, 2020;  Revised: December 18, 2020;  Accepted: December 18, 2020
Abstract:
Chloride ion is one of the most important corrosive agents in atmospheric corrosion, especially in marine environments. It has high adsorption rate and increases the conductivity of electrolytes. Since chloride ions affect the protective properties and the surface composition of the corrosion product, they increase the corrosion rate. A low level of chloride ions leads to uniform corrosion, whereas a high level of chloride ions may induce localized corrosion. However, higher solution temperatures tend to increase the corrosion rate by enhancing the migration of oxygen in the solution. This work focused on the effect of NaCl concentration and temperature on galvanic corrosion between A516Gr.55 carbon steel and AA7075T6 aluminum alloys. When AA7075T6 aluminum alloy was galvanically coupled to A516Gr.55 carbon steel, AA7075T6 was severely corroded regardless of NaCl concentration and solution temperature, unlike the corrosion properties of single specimen. The combined effect of surface treatment involving carbon steel and aluminum alloy on corrosion behavior was also discussed.
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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