Could galvanic corrosion between the aluminium and the crimp material be the cause of the failure?
My understanding was that the problem with Aluminium is less galvanic or bi-metal corrosion so much as the Aluminium itself tarnishing in air - the tarnish is very much less conductive than the raw metal. As mentioned a paste is often used when jointing aluminium - but it's main role is to keep air out of the joint to prevent the aluminium tarnishing.
Could galvanic corrosion between the aluminium and the crimp material be the cause of the failure?
My understanding was that the problem with Aluminium is less galvanic or bi-metal corrosion so much as the Aluminium itself tarnishing in air - the tarnish is very much less conductive than the raw metal. As mentioned a paste is often used when jointing aluminium - but it's main role is to keep air out of the joint to prevent the aluminium tarnishing.
