The comparison of the microstructure and corrosion resistance of sand cast aluminum alloys

Anna Dobkowska , Bogusława Adamczyk-Cieślak , Jarosław Mizera , Krzysztof Kurzydłowski , Andrzej Kiełbus


The influence of different types of precipitation on the corrosion behavior was investigated in three aluminum-siliconmagnesium alloys. The microstructures of the alloys were studied through optical (OM) and scanning electron microscopy (SEM). The structures consisted of an α-Al solid solution matrix, Si eutectic crystals, secondary phases AlFeSi and AlMgFeSi (Chinese script), as well as Mg2Si. The corrosion behavior was examined with the use of a potentiodynamic polarization test followed by a SEM surface analysis. The results indicate that all the analyzed samples were in the passive state and AlSi10Mg was less reactive in the corrosive environment.
Author Anna Dobkowska ZPM
Anna Dobkowska,,
- Division of Materials Design
, Bogusława Adamczyk-Cieślak ZPM
Bogusława Adamczyk-Cieślak,,
- Division of Materials Design
, Jarosław Mizera ZPM
Jarosław Mizera,,
- Division of Materials Design
, Krzysztof Kurzydłowski ZPM
Krzysztof Kurzydłowski,,
- Division of Materials Design
, Andrzej Kiełbus
Andrzej Kiełbus,,
Journal seriesArchives of Metallurgy and Materials, ISSN 1733-3490
Issue year2016
Publication size in sheets0.5
Keywords in Englishaluminium-silicon-magnesium alloys; microstructure; corrosion
Languageen angielski
Score (nominal)30
ScoreMinisterial score = 0.0, 28-11-2017, ArticleFromJournal
Ministerial score (2013-2016) = 30.0, 28-11-2017, ArticleFromJournal
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