Anodize is also a fatigue crack initiation source. It forms an irregular, rigid, oxide crystal on the surface of a soft metal. Good for abrasion resistance; not so good if the part flexes.
This question begs 'a reason WHY' are You considering anodize of 6061... when conversion coatings may do the trick.
OH,BTW what temper 6061??? -T4 or -T6... and 'how thin'? Is it to be welded?
For electrical use exclusively in a very controlled environment?
Etc. The quality of our answers = quality of the question/parameters.
Regards, Wil Taylor
o Trust - But Verify!
o We believe to be true what we prefer to be true. [Unknown]
o For those who believe, no proof is required; for those who cannot believe, no proof is possible. [variation,Stuart Chase]
o Unfortunately, in science what You 'believe' is irrelevant. ["Orion", Homebuiltairplanes.com forum]
It sounds like You might be designing a micro/small-sat?
I love spaceflight/spacecraft/satellite design... even though my bread-n-butter has been MIL! Materials in space are at a whole different level than earth-bound aircraft.
The NASA LDEF experiment used anodized 6061-T? for experiment trays... so it got +5.5 years on-orbit exposure. Awhile back I got a copy of the following document that might be very useful.
LDEF Materials Results for Spacecraft Applications
There are others, related to real-world [out-of-this-world] findings... do some digging.
Regards, Wil Taylor
o Trust - But Verify!
o We believe to be true what we prefer to be true. [Unknown]
o For those who believe, no proof is required; for those who cannot believe, no proof is possible. [variation,Stuart Chase]
o Unfortunately, in science what You 'believe' is irrelevant. ["Orion", Homebuiltairplanes.com forum]