Aluminium alloys corrosion
Aluminium alloys corrosion
(OP)
Could anyone tell me why aluminium 6082 has better
corrosion resistance than aluminium 2024 ?
corrosion resistance than aluminium 2024 ?
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Aluminium alloys corrosion
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Aluminium alloys corrosionAluminium alloys corrosion(OP)
Could anyone tell me why aluminium 6082 has better
corrosion resistance than aluminium 2024 ? Red Flag SubmittedThank you for helping keep Eng-Tips Forums free from inappropriate posts. Reply To This ThreadPosting in the Eng-Tips forums is a member-only feature.Click Here to join Eng-Tips and talk with other members! |
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RE: Aluminium alloys corrosion
These form intermetallics such as CuAl2 within the Al solid solution matrix. These intermetallics
1) interfere with the formation of protective oxide films, both native & from anodizing, as well as chemical conversion coatings.
2) Are cathodic to the Al matrix, thus causing galvanic corrosion in the presence of moisture.
RE: Aluminium alloys corrosion
Though a little more involved than this it the primary mode of failure for 2024 by severe pitting. Though 2024 is used in some applications it usually clad with pure Al to prevent these cells from forming.
RE: Aluminium alloys corrosion