doi: 10.14773/CST.2020.19.6.281 BibTeX RIS Mendeley


Control of Galvanic Corrosion Between A516Gr.55 Steel and AA7075T6 Depending on NaCl Concentration and Solution Temperature

Control of Galvanic Corrosion Between A516Gr.55 Steel and AA7075T6 Depending on NaCl Concentration and Solution Temperature

  • Hur,S. Y.(Andong National University) ,
  • Jeon,J. M.(Andong National University) ,
  • Kim,K. T.(Andong National University) ,
  • Kim,Y. S.(Andong National University) ,

초록

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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.


키워드

Carbon steel, AA7075T6, Galvanic corrosion, NaCl concentration, Solution temperature


발행 정보

서지정보
Corrosion Science and TechnologyCorrosion Science and Technology / v.19, no.6, 2020년, pp.281-287
발행기관
한국부식방식학회
저널 DOI
doi: 10.14773
pISSN
1598-6462
eISSN
2288-6524
발행일
2020.12.31
언어
영어

첨부파일

1 CST 19-6-1 Control of Galvanic Corrosion Between.pdf

이력 정보

2020.12.31 발행
2021.01.06 DOI발급

위치 정보


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