Solution Heat Treatment of 7075 Aluminum Alloy Affected on Anodic Oxide Layer

Itsaree Iewkitthayakorn; Somjai Janudom; Narissara Mahathaninwong

doi:10.4028/www.scientific.net/MSF.867.19

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HomeMaterials Science ForumMaterials Science Forum Vol. 867Solution Heat Treatment of 7075 Aluminum Alloy...

Solution Heat Treatment of 7075 Aluminum Alloy Affected on Anodic Oxide Layer

Abstract:

This research focused on the effect of solution heat treated microstructures on anodic oxide formations of casting 7075 Al alloy. The casting specimens were solution heat treated at 450°C for various holding. The results showed that the quality of anodic oxide film on the specimen with 4h solution heat treatment time was higher than that of at other conditions. Because its microstructures obtained the lowest amounts of secondary phase particles leading to improve the quality of oxide film and also reduce defects in oxide film. On the other hand, coarse black particles of Mg₂Si formed increasingly in microstructures of specimens after solution treatment at prolong holding time of 8h and 16h resulted in discontinues oxide films forming on them.

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Periodical:

Materials Science Forum (Volume 867)

Pages:

19-23

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.867.19

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Online since:

August 2016

Authors:

Itsaree Iewkitthayakorn, Somjai Janudom*, Narissara Mahathaninwong

Keywords:

7075 Aluminum Alloy, Anodic Oxide Film, Anodizing, Solution Heat Treatment

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