The Effect Of Lead/Graphite On Aircraft Grade Aluminum Alloy Metal Surface

Mohd Shafiee, Mohd Khusyairi Azwan (2008) The Effect Of Lead/Graphite On Aircraft Grade Aluminum Alloy Metal Surface. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

This report presents the study of the rate of pitting corrosion on Aluminum Alloy 2014-T4 sheet when in contact with different type of graphite pencil immerse in different molarity of solution. This project is divided into 2 scopes that are the project literature and the project experiment. In the project experiment an accelerated corrosion environment using apparatus in the chemistry laboratory environment using solution of Sodium Chloride is used. The samples are marked using different grade of pencil ranging from 2B to 7B. The rate of corrosion is calculated from the mass losses that have been achieved by subtracting the mass before cleaning and after cleaning process have been done. In this thesis, it also includes with, the calculation for the rate of corrosion, the EDX value for the composition of the aluminum that have been immerse and also the Scanning Electron Microscope images of the corrosion product under 1000X magnification. The result of this research has been successful and thus shows that the graphite content of the pencil do accelerate the rate of corrosion of Aluminum Alloy 2014-T4, although that some improvement need to bee done in the future.

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