7075 Aluminum - Round Bar AMS 4154 AMS 4045 Sheet Plate

[@atharvamadyal3114]

you are awesome

[@MichlinMetals]

Appreciate the kind words.

[@italoargento23]

Hola, que tal? ¿Because in a 7075-t6 spar that has corrosion in the wing-fuselage joint bolt hole, it can be reworked up to 0.975 inches, but if there is a crack, it cannot be reworked and must be changed. I am aware of the intergranular corrosion characteristic that 7075-t6 alloy suffers from, but I do not understand why. The easiest answer would be that the crack can be covered by reworking the hole, but I don't like that simple answer. I would recommend some documentation, and give me your opinion. Gracias

[@MichlinMetals]

Stress corrosion cracking of the structural joint would require replacement as the repair would make it more susceptible to failure. general mild surface corrosion without cracking would permit repair. (also Michlin takes no responsability for any statements provided based on results obtained, solely use for information only)

[@alexfriedman9989]

How do you mitigate segregation in wrought 7075-T73?

[@MichlinMetals]

Unusual to find any harmful segregation. Typical causes would be already be resolved by the solution treatment. As your question implies that material is already at final temper; it may not be possible to correct.

[@alexfriedman9989]

Thanks. Trying to figure out which parameters need tweaking prior to final temper to reduce “segregational streaking” after anodize.