Print Email Facebook Twitter Influence of chromic acid anodizing on the fatigue strength of overaged 7000 series aluminium alloys. Part I: Surface attack after anodizing Title Influence of chromic acid anodizing on the fatigue strength of overaged 7000 series aluminium alloys. Part I: Surface attack after anodizing Author Schra, L. Han, M.O.T.H. Institution National Aerospace Laboratory NLR Date 1986-09-30 Abstract The influence of different variables in the chromic acid anodizing process on the surface attack and the thickness of the anodizing layer was investigated for aluminium alloy 7050-T7451 (formerly T73651) plate, 7075-T7351 plate, 7075-T6 forgings and 7075-T73 forgings. A preliminary investigation was carried out to enable the selection of a proper number of positions to be judged for obtaining a representative picture of the attack. It was also investigated which parameters of attack would be most characteristic for description of the decrease in fatigue strength. The surface attack was classified in three classes. For each class of attack a selection of surface treatments was made for fatigue investigation. This investigation will be described in part 2 of this report. To reference this document use: http://resolver.tudelft.nl/uuid:0ca691ff-fbe5-4191-9b57-ee8ff543ff65 Publisher Nationaal Lucht- en Ruimtevaartlaboratorium Access restriction Campus only Source NLR-TR 86100 C Part of collection Aerospace Engineering Reports Document type report Rights (c)1986 National Aerospace Laboratory NLR Files PDF NLR_TR_86100_C.pdf 38.24 MB Close viewer /islandora/object/uuid:0ca691ff-fbe5-4191-9b57-ee8ff543ff65/datastream/OBJ/view