COMPARATIVE RESEARCH OF GALVANIC CORROSION OF 2024 AND 2124 ALUMINUM ALLOY

J Chin Soc Corr Pro

2012, Vol. 32

Issue (2): 133-136 DOI:

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COMPARATIVE RESEARCH OF GALVANIC CORROSION OF 2024 AND 2124 ALUMINUM ALLOY

PEI Hezhong¹, YIN Zuosheng¹, ZHANG Guoliang¹, LIU Yuanyong²

1. Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093
2. Kunming Institute of Physics, Kunming 650093

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Abstract Galvanic corrosion sensitivity of 2024 and 2124 aluminum alloys connected with high potential titanium alloy (TC4) to speed up corrosion was compared to the anodized aluminum alloy by measuring the current distribution curves of galvanic corrosion. By observing the surface morphology after corrosion, the galvanic corrosion behavior of 2××× series Al Alloy was analyzed. The results showed that purification could slightly reduce the corrosion current density and corrosion potential. Anodization could reduce the sensitivity of the corrosion effect significantly, which was an important protective measure for galvanic corrosion.

Key words: galvanic corrosion purification anodization current distribution surface topography corrosion sensitivation

Received: 23 December 2010

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PEI Hezhong, YIN Zuosheng, ZHANG Guoliang, LIU Yuanyong. COMPARATIVE RESEARCH OF GALVANIC CORROSION OF 2024 AND 2124 ALUMINUM ALLOY. J Chin Soc Corr Pro, 2012, 32(2): 133-136.

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2012/V32/I2/133

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