Have read that Ty III hard anodize may reduce the fatigue life of some materials up to 50%. Would the fact that something (7050 T7) is shot peened, subseqently hard anodized, and then damaged through both the anodize, and compressive pre-stress shot peen be more succeptable to local area...
Have heard several arguements/discussions on the effectiveness of Alodine (Chromate conversion coating per, MIL-C-5541 Class 1A) as a final coating. Most indications are that Alodine is an excellent base coat, but needs an organic topcoat. Anyone know of any study data, or higher level...
Anyone have a quick sumation of what possible effects could be expected of the following. Aluminum forging shot peened with 200% coverage damaged appx .006 deep gouge appx 1" long .008" wide. Damaged area blended out 10/1(ish), and shot peen not replaced? Most allowables of surface material...
Please correct me if I am on the wrong track. Ti and CRES develop their own oxidized surface somewhat comparable to chromate conversion of Aluminum. Correct? When you put CRES with CRES without paint, or sealant protection there is a tendancy to get repetitive in this process of self...
Recently exposed to a repair (if one would want to call it that) involving filling/fairing a metal structure with adhesive EA934/Magnabond6398. Then drilling through said filled holes to mount a flight control bellcrank. Two of the four holes received this pasty repair. Dare I ask? Has...
