Effects of Si addition on the corrosion susceptibility of aluminium alloys in different concentrations of NaOH, and NaCl solutions

Authors

Abstract

This study examines the effect of silicon addition at 5%, 10%, and 15% by weight on the corrosion susceptibility of aluminium alloys in 0.5 M and 1.0 M sodium hydroxide (NaOH) solutions, as well as 0.5 M and 1.0 M sodium chloride (NaCl) solutions. The aluminium was moulded and furnished, and the alloys were exposed to these corrosive environments for durations ranging from 168 to 672 hours. The corrosion behaviour of the alloy samples was assessed by measuring the weight loss, from which the corrosion rate was calculated. The results showed that the normal corrosion rate profile was observed as the reinforcement phase increased, and the samples increased in weight. This indicates continuous passivation, particularly in the 10% Si alloy content resulted in a low corrosion rate of the alloy, which was significantly lower than the other concentrations, indicating superior resistance. Based on these findings, it is recommended to optimize the silicon concentration at 10% for enhanced corrosion resistance in alkaline and salty corrosive environments. These alloys, with corrosion rates ranging from 0.01 to 0.05, are well suited for aerospace, marine, automotive, and chemical processing plant applications where materials are exposed to corrosive conditions and require durability.

Dimensions

Abbas, M. K. (2010). Effects of friction stir welding on the microstructure and corrosion behaviour of aluminium alloy AA6061-T651. In Proceedings of the 2nd regional conference for engineering sciences (pp. 1–2), Baghdad.

Ahmed, M. A., Amin, S., and Mohamed, A. A. (2024). Current and emerging trends of inorganic, organic and eco-friendly corrosion inhibitors, RSC Adv., 14, 31877.

Ahmed, M. A., Mahmoud, S. A., and Mohamed, A. A., (2024). Unveiling the complexities of microbiologically induced corrosion: mechanisms, detection techniques, and mitigation strategies, Front. Environ. Sci. Eng., 18(10), 120.

Alaneme, K. K., & Bodunrin, M. (2011). Corrosion behaviour of alumina reinforced aluminium (6063) metal matrix composites. Journal of Minerals and Materials Characterization and Engineering, 10(12), 1153–1165.

Alaneme, K. K., Olubambi, P. A., Afolabi, A. S., & Bodurin, M. O. (2014). Corrosion and tribological studies of bamboo leaf ash and alumina reinforced Al-Mg-Si alloy matrix hybrid composites in chloride medium. International Journal of Electrochemical Science, 9, 5663–5674.

Alpas, A.T, Zhang, J. (2016). Effect of SiC particulate reinforcement on the dry sliding wear of aluminium-silicon alloys (A356), J Mat. Sc., 155, 83-104

Anil, K. S. (2001). Physical metallurgy handbook. New York, NY: McGraw- Hill Publication.

Assad H., and Kumar A. (2021). Understanding functional group effect on corrosion inhibition efficiency of selected organic compounds, J. Mol. Liq., 344, 117755.

Callister, W. D. (2003). Materials Science and Engineering. New York, NY: John Wiley Sons, Inc.

Davis, J.R. (2018). Physical Metallurgy of Aluminum Alloys. In Metals Handbook Desk Edition; ASM International: Detroit, MI, USA, pp. 437–442.

Deepa, P.; Padmalatha, R. (2017). Corrosion behaviour of 6063 aluminium alloy in acidic and in alkaline media. Arab. J. Chem., 10, S2234–S2244

Ekuma, C. E., and Idenyi, N. E. (2006). The inhibition characteristics of brine on the corrosion susceptibilitty of Al-Zn alloy system. Journal of Applied Sciences, 6(8), 1751-1755.

Emmanuel, A.; Fayomi, O.; Akande, I. (2021). Aluminium Alloys as Advanced Materials: A short communication. IOP Conf. Ser. Mater. Sci. Eng., 1107, 012024.

Haque J., Zulaikha M. A., Wan Nik W. B., Daoudi W., Berdimurodov E., Zulkifli F. (2023). Alocasia Odora Extract as Environmentally Benign Corrosion Inhibitor for Aluminum in HCl. Mor. J. Chem., 11(4), 1013-1026.

Hossain, N.; Chowdhury, M.A.; Iqbal, A.P.; Ahmed, A.F.; Islam, S. (2022). Corrosion behaviour of aluminum alloy in NaOH and Syzygium Samarangense solution for environmental sustainability. Curr. Res. Green Sustain. Chem., 5, 100254.

Ikeuba A. I., Njoku C. N., Ekerenam O. O., Njoku D. I., Udoh l. I., Daniel E. F., Uzoma P. C., Etim I. N., and Okonkwo B. O. (2024). A review of the electrochemical and galvanic corrosion behaviour of important intermetallic compounds in the context of aluminium alloys. RSC Adv., 14, 31921

Kharitonov, D.S.; Dobryden, I.; Sefer, B.; Ryl, J.; Wrzesińska, A.; Makarova, I.V.; Bobowska, I.; Kurilo, I.I.; Claesson, P.M. (2020). Surface and corrosion properties of AA6063-T5 aluminum alloy in molybdate-containing sodium chloride solutions. Corros. Sci., 171, 108658.

Kisasoz, A. (2018). Corrosion behavior of alloy AA6063-T4 in HCl and NaOH solutions. Mater. Test. 60, 478–482.

Kosari A., Tichelaar F., Visser P., Zandbergen,H., Terryn H., and J. M. C. Mol, J. M.C. (2020). Dealloying-driven local corrosion by intermetallic constituent particles and dispersoids in aerospace aluminium alloys, Corros. Sci., 177, 108947.

Liao, X., Cao, F., Zheng, L., Liu, W., Chen, A., Zhang,J., Cao. C. (2011). Corrosion behaviour of copper under chloride-containing thin electrolyte layer, Corrosion Science 53, 3289-3298.

MacKenzie, D.S. (2018). Metallurgy of Heat Treatable Aluminum Alloys. In Aluminum Science and Technology; ASM International: Detroit, MI, USA, 2018; pp. 411–437.

Nayem, H., Mohammad, A. I., and Mohammad A. C. (2023) Advances of plant-extracted inhibitors in metal corrosion reduction-Future prospects and challenges. Results in Chemistry, 5, 100883.

Ong, G., Kasi, R. Subramaniam, R. (2021). A review on plant extracts as natural additives in coating applications, Progress in Organic Coatings, 151, 106091,

Quadri, T.W.; Akpan, E.D.; Olasunkanmi, L.O.; Fayemi, O.E.; Ebenso, E.E. (2021). Fundamentals of Corrosion Chemistry. In Environmentally Sustainable Corrosion Inhibitors: Fundamentals and Industrial Applications; Elsevier: Amsterdam. The Netherlands, pp. 25–45. ISBN 9780323854054.

Roland T. L., and Mfon U. (2019). Effect of SiC particle additions on the corrosion resistance, thermodynamic stability and surface morphology of Mg–Al alloy in sulphate and chloride media. MATER. RES. EXPRESS 6 0865g5.

Roland T. L., and Philip B. (2017, Corrosion polarization behaviour and microstructural analysis of AA1070 aluminium silicon carbide matrix composites in acid chloride concentrations, Cogent Engineering, 4: 1422229.

Samiul K., and Mohammad S. K. (2020). A comparative study of chemical and physical properties of copper and copper alloys affected by acidic, alkaline and saline environments. J. Electrochem. Sci. Eng. 10(4), 373-384;

Shahidi, M.; Gholamhosseinzadeh, M. (2015). Electrochemical evaluation of AA6061 aluminum alloy corrosion in citric acid solution without and with chloride ions. J. Electroanal. Chem., 757, 8–17.

Sieniawski (2011) Microstructure and mechanical properties of C355:0 cast aluminium alloy, Arch. Mater. Sci. Eng., 47, 85–94.

Thompson, G.E.; Zhang, L.; Smith, C.J.E.; Skeldon, P. (1999). Boric/Sulfuric Acid Anodizing of Aluminum Alloys 2024 and 7075: Film Growth and Corrosion Resistance. Corrosion, 55, 1052–1061.

Totten, G.; MacKenzie, D.S. Handbook of Aluminum: Physical Metallurgy and Processes, 1st ed.; Marcel Dekker, Inc.: New York, NY, USA, 2003; Volume 1, ISBN 0824704940.

Zehra, S., Mobin M., and Aslam, J. (2022). An overview of the corrosion chemistry. In Environmentally Sustainable Corrosion Inhibitors, Elsevier, 3–23.

Zuchry, M. Renreng, I., Arsyad, H., Arma, L. H. (2023). Effect of anodizing on aluminium alloy 2024 with boric sulfate acid in medium 3.5 % nacl. Eastern-European Journal of Enterprise Technologies, 124 (6), 41, https://doi.org/10.15587/1729-4061.2023.286351

Published

2024-12-31

How to Cite

Idu, H. K. (2024). Effects of Si addition on the corrosion susceptibility of aluminium alloys in different concentrations of NaOH, and NaCl solutions. Nigerian Journal of Physics, 33(4), 32-38. https://doi.org/10.62292/njp.v33i4.2024.312

Issue

Vol. 33 No. 4 (2024): Nigerian Journal of Physics - Vol. 33 No. 4

Section

Articles
Copyright & Licensing

How to Cite

Idu, H. K. (2024). Effects of Si addition on the corrosion susceptibility of aluminium alloys in different concentrations of NaOH, and NaCl solutions. Nigerian Journal of Physics, 33(4), 32-38. https://doi.org/10.62292/njp.v33i4.2024.312

Most read articles by the same author(s)