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Evaluation of AA 7075-T6 Alloy’s Corrosion Behavior Using Salt Spray Test

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The 17th International Conference Interdisciplinarity in Engineering (Inter-ENG 2023)

Abstract

AA7075-T6 is a precipitated hardened alloy widely used in aerospace, defense, marine, and automotive industries. The corrosion evolution of this alloy was studied using the salt mist test at two different temperatures. The resistance to pitting corrosion was determined by various tests of relative mass loss, the surface density of the pitting points, and electrical conductivity. The corroded samples were analyzed by optical microscopy in order to count the number of points per surface element. Statistical analysis revealed that the density of the points follows an exponential law. The electrical conductivity decreases with time.

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References

  1. El Garchani, F.E.E., Kabiri, M.R., et al.: The study on characteristics of heat treatment of the AA2024 aluminum alloys. J. Multidiscip. Appl. Nat. Sci. 3(2) (2023). https://doi.org/10.47352/jmans.2774-3047.166

  2. El Garchani, F.E., et al.: Effects of heat treatment on the corrosion behavior and mechanical properties of aluminum alloy 2024. J. Mater. Res. Technol. 25, 1355–1363 (2023). https://doi.org/10.1016/j.jmrt.2023.05.278

    Article  Google Scholar 

  3. El Garchani, F.E.E., Kabiri, M.R.: Intergranular corrosion and mechanical property evolution in AA2024 alloy through heat treatment. Int. J. Adv. Manufact. Technol. août (2023). https://doi.org/10.1007/s00170-023-12161-y

  4. El Garchani, F.E.E., Kabiri, M.R.: Comparative study of corrosion susceptibility and microstructural effects on AA7075-T6 aluminum alloys under different heat treatments. Int. J. Adv. Manufact. Technol. 127 (2023). https://doi.org/10.1007/s00170-023-11731-4

  5. Kumar, P.V., Reddy, G.M., Rao, K.S.: Microstructure, mechanical and corrosion behavior of high strength AA7075 aluminium alloy friction stir welds – effect of post weld heat treatment. Def. Technol. 11(4), 362–369 (2015). https://doi.org/10.1016/j.dt.2015.04.003

  6. Fuller, C., Mahoney, M., Calabrese, M., Micona, L.: Evolution of microstructure and mechanical properties in naturally aged 7050 and 7075 Al friction stir welds. Mater. Sci. Eng. A 527, 2233–2240 (2010). https://doi.org/10.1016/j.msea.2009.11.057

  7. Wloka, J., Bürklin, G., Virtanen, S.: Influence of second phase particles on initial electrochemical properties of AA7010-T76. Electrochimica Acta 53(4), 2055–2059 (2007). https://doi.org/10.1016/j.electacta.2007.09.004

  8. Szklarska-Smialowska, Z.: Pitting corrosion of aluminum. Corros. Sci. 41(9), 1743–1767 (1999). https://doi.org/10.1016/S0010-938X(99)00012-8

  9. Galvele, J.R., De Micheli, S.M.: Mechanism of intergranular corrosion of Al-Cu alloys. Corros. Sci. 10(11), 795‑807 (1970). https://doi.org/10.1016/S0010-938X(70)80003-8

  10. Muller, I.L., Galvele, J.R.: Pitting potential of high purity binary aluminium alloys—I. Al-Cu alloys. Pitting and intergranular corrosion. Corros. Sci. 17(3), 179–193 (1977). https://doi.org/10.1016/0010-938X(77)90044-0

  11. Mazurkiewicz, B., Piotrowski, A.: The electrochemical behaviour of the Al2Cu intermetallic compound. Corros. Sci. 23(7), 697–707 (1983). https://doi.org/10.1016/0010-938X(83)90034-3

  12. Younis, A.A., El-Sabbah, M.M.B., Holze, R.: The effect of chloride concentration and pH on pitting corrosion of AA7075 aluminum alloy coated with phenyltrimethoxysilane. J. Solid State Electrochem. 16(3), 1033–1040 (2012). https://doi.org/10.1007/s10008-011-1476-7

  13. Sedriks, A.J.: Plenary lecture—1986: effects of alloy composition and microstructure on the passivity of stainless steels. Corrosion 42(7), 376–389 (1986). https://doi.org/10.5006/1.3584918

  14. Ganborena, L., Vega, J.M., Özkaya, B., Grande, H.J., García-Lecina, E.: AN SKP and EIS study of microporous nickel-chromium coatings in copper containing electrolytes. Electrochimica Acta 318, 683–694 (2019). https://doi.org/10.1016/j.electacta.2019.05.108

  15. Bahrami, M., Dehghani, K., Givi, M.K.B.: A novel approach to develop aluminum matrix nano-composite employing friction stir welding technique. Mater. Des. Complete 53, 217−225 (2014). https://doi.org/10.1016/j.matdes.2013.07.006

  16. Pang, J.J., Liu, F.C., Liu, J., Tan, M.J.: Blackwood DJ. Corros. Sci. 106, 217–228 (2016)

    Article  Google Scholar 

  17. EL Assyry, A.: Characterization and corrosion resistance study of aeronautical aluminum 2024-T4 and 7075-T6 alloys. Moroccan J. Chem. 9(4) (2021): in progress (2021). https://doi.org/10.48317/IMIST.PRSM/MORJCHEM-V9I4.26108

  18. Femminella, O.P., Starink, M.J., Brown, M., Sinclair, I., Harris, C.J., Reed, P.A.: Data pre-processing/model initialization in neurofuzzy modelling of structure-property relationships in Al-Zn-hng-Cu alloys. ISIJ Int. 39(10), 1027–1037 (1999)

    Google Scholar 

  19. Fortin, P.E.: Factors influencing electrical conductivity and strength of aluminum and its alloy. Can. Metall. Q. 11(2), 309–315 (1972)

    Google Scholar 

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Acknowledgements

We gratefully acknowledge the financial support of the Minister of Higher Education, Scientific Research and Innovation, and the National Office of University, Social and Cultural Works of Morocco.

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Correspondence to Fatima El Garchani .

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El Garchani, F., Kabiri, M.R. (2024). Evaluation of AA 7075-T6 Alloy’s Corrosion Behavior Using Salt Spray Test. In: Moldovan, L., Gligor, A. (eds) The 17th International Conference Interdisciplinarity in Engineering. Inter-ENG 2023. Lecture Notes in Networks and Systems, vol 926. Springer, Cham. https://doi.org/10.1007/978-3-031-54664-8_1

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  • DOI: https://doi.org/10.1007/978-3-031-54664-8_1

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