Experimental study of exfoliation corrosion-induced mechanical properties degradation of Aluminum alloys: 2024-T3 and 5083-H22

  • Abdessamad Brahami Université Djilali Liabes, BP 89, Sidi Bel Abbes, 22000, Algeria
  • Jamal Fajoui Institut Universitaire de Technologie de Saint Nazaire, 58 rue Michel Ange - BP 420, Saint Nazaire, 44606, France.
  • Benattou Bouchouicha Université Djilali Liabes, BP 89, Sidi Bel Abbes, 22000, Algeria
Keywords: aluminum alloys, mechanical properties, microstructure, exfoliation corrosion, precipitation, SEM analyses

Abstract

The objective of the present work were to study the influence of exfoliation corrosion (EFC) of 2024 and 5083 aluminum alloys on the mechanical properties degradation. Tensile test had been carried out on pre-corroded specimens, exposed to laboratory accelerated exfoliation corrosion solution. The analysis suggests that exfoliation exposure leads to decrease the mechanical properties of all materials. The effects of the grain boundary character distribution and precipitates on corrosion are discussed on the basis of experimental observations by Scanning Electron Microscope SEM combined with Energy Dispersive Spectroscopy EDS analysis.  

DOI

Cite as: Brahami A, Fajoui J, Bouchouicha B. Experimental study of exfoliation corrosion-induced mechanical properties degradation of aluminum alloys: 2024-T3 and 5083-H22. Alg. J. Eng. Tech. 2020;02:022-028. http://dx.doi.org/10.5281/zenodo.3924714

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Published
2020-06-28
How to Cite
Brahami, A., Fajoui, J., & Bouchouicha, B. (2020). Experimental study of exfoliation corrosion-induced mechanical properties degradation of Aluminum alloys: 2024-T3 and 5083-H22. Algerian Journal of Engineering and Technology, 2, 022-028. Retrieved from http://jetjournal.org/index.php/ajet/article/view/23