Study Of Coating Properties For Aircraft Aluminum Alloy Substrate

Azis, Nurul Atikah (2015) Study Of Coating Properties For Aircraft Aluminum Alloy Substrate. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

This studies relates to the properties of aluminum alloy whereby is the aging part of aircraft that coated by using the cold spray technology. This project studied the effectiveness of using cold spray technology as a coating treatment. The main objective of this study is to characterize the coating properties of Al 6061 alloy deposited on Al 7075 aircraft aluminum alloy substrate using high pressure cold spray (HPCS) technique. An aging part of aircraft possessed a high value of corrosion and failure, due to the corrosion part is coated with Aluminum 6061 powder. Through this study, powder material was impacted and accelerated onto the substrate using Aluminum 7075. The efficiency of HPCS coating process were evaluated by different of characteristic which involved the corrosion analysis using Salt Spray testing, microstructure analysis using Field Emission Scanning Electron Microscope (FESEM), micro hardness testing and elemental analysis using Energy Dispersive X-ray (EDX).The result indicated that the Cold Spray technology could be used as coated treatment to treat the defect part. Salt Spray also resulted with less corrosion near the surface of coated sample. In addition, this technology was proven on the increase of hardness of the aircraft part. The evaluation analysis has been proven that Cold Spray technology can be used to improve the corrosion structure and hardness for coating treatment.

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