High frequency fatigue, tribological performance, and corrosion resistance of Al 2050 prepared by additive fiction stir deposition

Document Type

Article

Publication Date

1-1-2026

Abstract

Despite the recent progress in additive friction stir deposition (AFSD) and the wide applications of Al-Li alloys in aerospace industry, the research on depositing these alloys with AFSD is limited. In this study, Al 2050 was deposited by AFSD, and the fabricated part was subjected to different tests such as high frequency tension-compression fatigue, reciprocating ball-on-disk wear, electrochemical corrosion, and microstructural tests. For fatigue testing, specimens were designed by performing finite element analysis and then subjected to various stress amplitudes. The results indicated a reduction in fatigue life after AFSD, especially in the initial layers. Similarly, corrosion resistance decreased after the process as the current density increased significantly compared to the feedstock. On the contrary, the tribological performance of the deposition was promising as the wear resistance enhanced by approximately 47% after the process. Microstructural analysis revealed significant changes including precipitate coarsening and grain refinement which were likely the reasons for the changes in the material performance.

Publication Source (Journal or Book title)

International Journal of Advanced Manufacturing Technology

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