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Aluminum is widely used in a plenty of industrial applications such as constructions, electrical engineering, transport and especially in aircraft industry for the manufacturing and production of different equipment and machineries. Despite the good properties of aluminum and its alloys, they are not perfect materials for engineering applications in all environments, since they suffer from corrosion caused by chemical interaction with their surroundings. Pitting corrosion is one of the major problems faced by aluminum components used in aircraft. In this project an experimental investigation is taken on the corrosion analysis of aluminum alloy material used in aircraft components. At present the nose landing gear undergoes severe corrosion problem and leads to failure of component. Pitting corrosion is localized accelerated dissolution of metal that occurs as a result of a breakdown of the protective passive film on the metal surface. This project provides a study about corrosion analysis of aluminum alloy (7076) used in aircraft components. Identification of material details, preparing test samples out of collected material and scope of improvements corrosion resistant recognized as key enabling to reduce the impact of corrosion on the integrity of critical aircraft assets. Hence three different types of coatings are developed, and their corrosion resistance been tested.

In this project two types of heat treatment experiments been used to test the samples with coating condition and without coating condition. The material behavior was examined using, Hardness testing (before and after Heat treatment), corrosion test with dry and wet conditions and surface roughness measurement. Finally, the objective of the project is achieved successfully by the analysis of these results.

Keywords: Aluminum alloy (7076), Pitting corrosion, Hardness testing, Heat treatment.