New process enhances the corrosion-fatigue performance of high strength aerospace aluminum alloys
Indian Scientists have developed an environment-friendly process for improving the lasting of a material in the face of corrosion (corrosion-fatigue life) of high strength aerospace Aluminium alloys that make aerospace structures sufficiently light. Aluminum alloys are used in aerospace, automobile, and marine applications due to their low density and high specific strength (strength-to-weight ratio). Among various aluminum alloys, heat treatable wrought alloy compositions possess high mechanical strength and are commonly preferred by the aerospace industry. The aerospace components of these aluminum alloys, including landing gear, wing spar, fuselage, skins, pressure cabins, and so on, are expected to possess high fatigue life and corrosion resistance. Though Aluminum alloys' corrosion resistance is significantly enhanced by depositing harder alumina (Al 2 O 3 ) coating through anodic-oxidation-based processes, these processes employ concentrated acids as their electrolyte,...