Effect of Partial Cladding Pattern of Aluminum 7075 T651 on Corrosion and Mechanical Properties

Abstract

The corrosion resistance of aluminum 7075 T651 in full clad (Alclad), partial clad, and bare (unclad) forms was compared after 300 hours of corrosion exposure in an acidic salt spray cabinet test at 36 ∘ C. After corrosion exposure, severe to moderate exfoliation corrosion was observed on the unprotected medium sized test panel, light general corrosion was observed on the partially clad panel, and patches of corrosion not penetrating the clad layer were observed on the fully clad panel. After corrosion tests, the tensile strength of partially clad, fully clad, and unprotected panels decreased by 3.4%, 4.0%, and 5.3%, respectively.

Crack Growth Model for Evaluation the Fatigue Life of Aluminum Alloys

“…In this investigation, aluminium alloys (AA2014 and AA7075-T651) were chosen as the materials of interest for the analysed models. These alloys were specifically selected due to their favourable mechanical characteristics, resistance to common forms of corrosion, impressive strength-to-weight ratios, and improved malleability, making them extensively applied in the field of aerospace [12], [13]. The chemical composition of the AL alloys (AA2014 and AA7075-T651) underwent analysis at Iraq's Ministry of Industry and Materials, State Company for Inspection and Engineering Rehabilitation (SIER), and was subsequently compared against established standards:…”