Elucidation of the trigger for trenching around Al6(Fe, Mn) on AA5083 aluminum alloy in diluted synthetic seawater
Source abstract
Abstract
A small area with a large Al 6(Fe, Mn) particle and a large Mg 2Si particle was prepared on AA5083, and the dislocation and corrosion behaviors were compared with those of small areas containing only Mg 2Si and Al 6(Fe, Mn) particles in 100-times diluted synthetic seawater. Mg 2Si discolored in both cases upon immersion, but discoloration and trenching were observed for Al 6(Fe, Mn) only when Mg 2Si was on the same area. The discoloration of Al 6(Fe, Mn) started simultaneously with the dissolution of Mg 2Si. The role of Mg 2Si in the discoloration of Al 6(Fe, Mn) particles and the trench formation mechanism was discussed.
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Research context
OpenAlex topics: Aluminum Alloy Microstructure Properties · Aluminum Alloys Composites Properties · Anodic Oxide Films and Nanostructures
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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