Cailiao Baohu (Apr 2023)

SCAB and Filamentous Corrosion Properties of 6016 Aluminum Alloy with Different Surface States

  • RAN Fanqing, BAI Yongfang, WEI Jianguo, YIN Zhusong

DOI
https://doi.org/10.16577/j.issn.1001-1560.2023.0100
Journal volume & issue
Vol. 56, no. 4
pp. 183 – 187

Abstract

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Aluminum alloys used in automobiles are usually required to have high corrosion resistance.To explore the effects of differnet surface conditions on the corrosion resistance of alloy，6016 alloy was subjected to different surface treatments，including MF surface，MF+TiZr coatign，EDT surface and EDT+TiZr coating，and the surface micro-morphology and corrosion results of 6016 alloy in different surface conditions were compared by SEM，SCAB and FFC tests.Results showed that the EDT treatment and TiZr treatment could reduce the fine cracks caused by rolling and alkali washing on the surface of the alloy，and make the surface of the alloy more uniform，thus improving the ability of the alloy to resist SCAB corrosion and FFC corrosion.

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