There are references easily found with Google that discuss MIC of aluminum, and of magnesium. Just add the search term MIC to whichever alloy system. Whether or not the material is in cast form probably does not affect susceptibility, other than the differences in compositions between wrought and cast grades.
As is often the case with MIC it is more likely in situations where materials can form a film or deposit on the surface of the alloy, and the absence / exclusion of oxygen could also contribute. This would allow an environment to form or collect that would be conducive to breakdown of the protective oxide film. I don't have any personal experience with MIC with either of those systems, though I saw it commonly in steel gas pipelines and also in seawater stainless steel exposure.
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Paul Tibbals, PE
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Original Message:
Sent: 01-19-2021 10:21
From: James Quinn
Subject: MIC or Al and/or Mg casting
I am passing these questions around for another person.
Does microbiological induced corrosion have the ability
to attack an aluminum casting? Or magnesium casting?
Do you have any images of this type of corrosion?
Or a good link that can provide me with some info? .
regards,
Jim
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Jim Quinn
Materials Sci & Chem Eng
Stony Brook University
Stony Brook NY
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