Journal of Materials and Engineering Structures
Volume 11, Numéro 3, Pages 245-254
2024-09-30
A New Technique Of Friction Stirs For Repairing Corrosion Of Aluminum Plates
Authors : Lakli Brahim . Berrahou Mohamed .
Abstract
In this paper, we introduce and investigate a new technique based on the working principles of friction stir technologies for repairing corrosion in aluminum plates. This method utilizes friction, where a pinless tool with high rotation speed effectively cleans the corroded area through friction, generating heat between the plate and the tool. After cleaning, filler material is added to the corrosion-affected zone. The rotating tool exerts frictional heat on the filler material and the workpiece, which created a thermal field to treat corrosion by fusion and mixing in the corrosion zone. The generated heat comes from frictional and plastic dissipations, in which the friction contributes to the fusion of the filling material with the base metal. Tensile tests were performed to evaluate the mechanical properties of the repaired, corroded, and normal specimens. The mechanical properties of specimens are discussed so that the results of the tensile test showed a significant decrease in the mechanical resistance of the corroded plate, while the results for the repaired plate showed a significant improvement in mechanical properties, indicating that the repaired plate can perform its function satisfactorily again. the tensile test demonstrated the effectiveness of the applied friction stir repair technique in restoring properties, thereby improving the service life of the structure
Keywords
Friction Stir technologies ; Aluminum alloy A2017 ; Tensile test ; Mechanical properties
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