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

RAN Fanqing, BAI Yongfang, WEI Jianguo, YIN Zhusong

doi:10.16577/j.issn.1001-1560.2023.0100

Materials Protection >

2023 , Vol. 56 >Issue 4: 183 - 187

DOI: https://doi.org/10.16577/j.issn.1001-1560.2023.0100

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

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(Tianjin Zhongwang Aluminum Co.，Ltd.，Tianjin 301700，China)

Received date: 2022-10-19

Revised date: 2022-11-21

Accepted date: 2022-12-18

Online published: 2023-08-04

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Abstract

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.

Key words： 6016 aluminium alloy; EDT; TiZr coating; SCAB; FFC

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RAN Fanqing, BAI Yongfang, WEI Jianguo, YIN Zhusong . SCAB and Filamentous Corrosion Properties of 6016 Aluminum Alloy with Different Surface States[J]. Materials Protection, 2023 , 56(4) : 183 -187 . DOI: 10.16577/j.issn.1001-1560.2023.0100

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