不同陽極處理對7075-T6及7050-T6鋁合金耐腐蝕性質及疲勞強度分析

In this study, Al7075 and Al7050 alloy samples were prepared for three Anodization treatment(Anodization、Hard Anodization(low current density)、Hard Anodization(high current density) ) to obtain a fixed anodic aluminum oxide (AAO) film thickness(10um). The anodized and sealed samples were observed and analyzed by X-ray Photoelectron(XPS) , Scanning electron microscope(SEM),hydrogen concentration detector and potentiodynamic test.The samples were also carrying out rotating bending fatigue test. We found the factors influenced the corrosion resistance of two alloy samples included pore numbers and/or volume,constituted oxide phases and voids formed in the AAO film.And the anodized/sealed Al7050 alloy samples exhibited the greatest fatigue strength at 107 life cycles among all samples. Hydrogen content remained in the samples’ matrix mainly