Artificial Ageing of Aeronautical Al-Cu-Li (2198) Sheets: Mechanical Behaviour and Corrosion Susceptibility †
Abstract
1. Introduction
2. Materials and Methods
3. Results and Discussion
3.1. Effect of Artificial Ageing on Microstructural and Mechanical Behaviour
3.2. Effect of Artificial Ageing on Fatigue Behaviour
3.3. Effect of Artificial Ageing on Corrosion Susceptibility
4. Conclusions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
- Rioja, R.J.; Liu, J. The evolution of Al-Li base products for aerospace and space applications. Metall. Mater. Trans. A 2012, 43, 3325–3337. [Google Scholar]
- Blankenship, C.P.; Starke, E.A. Improved toughness in Al–Li–Cu–Mg–Ag–Zr alloy X2095. Scr. Metall. Mater. 1992, 26, 1719–1722. [Google Scholar]
- Nie, J.F.; Muddle, B.C.; Polmear, I.J. The effect of precipitate shape and orientation on dispersion strengthening in high strength aluminium alloys. Mater. Sci. Forum. 1996, 217, 1257–1262. [Google Scholar] [CrossRef]
- Itoh, G.; Cui, Q.; Kanno, M. Effects of a small addition of magnesium and silver on the precipitation of T1 phase in an A1-4%Cu-l.l%Li-0.2% Zr alloy. Mater. Sci. Eng. A 1996, 211, 128–137. [Google Scholar] [CrossRef]
- Araullo-Peters, V.; Gault, B.; Geuser, F.; Deschamps, A.; Cairney, J.M. Microstructural evolution during ageing of Al–Cu–Li–x alloys. Acta Mater. 2014, 66, 199–208. [Google Scholar] [CrossRef]
- Huang, B.-P.; Zheng, Z.-Q. Effects of Li content on precipitation in Al–Cu–(Li)–Mg–Ag–Zr alloys. Scr. Mater. 1998, 38, 357–362. [Google Scholar]
- Decreus, B.; Deschamps, A.; De Geuser, F.; Donnadieu, P.; Sigli, C.; Weyland, M. The influence of Cu/Li ratio on precipitation in Al–Cu–Li–x alloys. Acta Mater. 2013, 61, 2207–2218. [Google Scholar] [CrossRef]
- Alexopoulos, N.D.; Velonaki, Z.; Stergiou, C.; Kourkoulis, S.K. Effect of ageing on precipitation kinetics, tensile and work hardening behavior of Al-Cu-Mg (2024) alloy. Mater. Sci. Eng. A 2017, 700, 457–467. [Google Scholar] [CrossRef]
- Astika, I.M. Hardness improvement of aluminum alloy 2024 Τ3 after artificial aging treatment. IOP Conf. Series Mater. Sci. Eng. 2019, 539, 012004. [Google Scholar]
- Ringer, S.P.; Marceau, R.K.W.; Sha, G.; Ferragut, R.; Dupasquier, A. Solute clustering in Al–Cu–Mg alloys during the early stages of elevated temperature ageing. Acta Mater. 2010, 58, 4923–4939. [Google Scholar]
- Zhang, S.F.; Zeng, W.D.; Yang, W.H.; Shi, C.L.; Wang, H.J. Ageing response of a Al–Cu–Li 2198 alloy. Mater. Des. 2014, 63, 368–374. [Google Scholar]
- Kim, J.; Jeun, J.; Chun, H.; Lee, Y.R.; Yoo, J.; Yoon, J.; Lee, H. Effect of precipitates on mechanical properties of AA2195. J. Alloys Compd. 2016, 669, 187–198. [Google Scholar] [CrossRef]
- Jiang, B.; Cao, F.; Wang, H.; Yi, D.; Jiang, Y.; Shen, F.; Wang, B.; Liu, H. Effect of aging time on the microstructure evolution and mechanical property in an Al-Cu-Li alloy sheet. Mater. Sci. Eng. A 2019, 740, 157–164. [Google Scholar] [CrossRef]
- Sun, S.; Fang, Y.; Zhang, L.; Li, C.; Hu, S. Effects of aging treatment and peripheral coarse grain on the exfoliation corrosion behaviour of 2024 aluminium alloy using SR-CT. J. Mater. Res. Technol. 2020, 9, 3219–3229. [Google Scholar] [CrossRef]
- Wang, Z.; Chen, P.; Li, H.; Fang, B.; Song, R.; Zheng, Z. The intergranular corrosion susceptibility of 2024 Al alloy during re–ageing after solution treating and cold–rolling. Corros. Sci. 2017, 114, 156–168. [Google Scholar]
- Alexopoulos, N.D.; Velonaki, Z.; Stergiou, C.I.; Kourkoulis, S.K. The effect of artificial ageing heat treatments on the corrosion-induced hydrogen embrittlement of 2024 (Al–Cu) aluminium alloy. Corros. Sci. 2016, 102, 413–424. [Google Scholar]
- Huang, J.; Li, J.; Liu, D.; Zhang, R.; Chen, Y.; Zhang, X.; Ma, P.; Gupta, R.K.; Birbilis, N. Correlation of intergranular corrosion behaviour with microstructure in Al-Cu-Li alloy. Corros. Sci. 2018, 139, 215–226. [Google Scholar] [CrossRef]
- Mondolfo, L.F. Aluminum Alloys—Structure and Properties; Butter Worths: London, UK, 1976. [Google Scholar]
- Examilioti, T.N.; Klusemann, B.; Kashaev, N.; Riekehr, S.; Enz, J.; Alexopoulos, N.D. Anisotropy and size effect in tensile mechanical properties of al-cu-li 2198 alloy. Procedia Struct Integr. 2017, 5, 13–18. [Google Scholar]
- Martin, J.W. Precipitation Hardening, 2nd ed.; Butterworth-Heinemann: Oxford, UK, 1998. [Google Scholar]
- Polmear, I. Metallurgy of the light alloys. In Light Alloys, Metallurgy and Materials Science, 3rd ed.; Butterworth-Heinemann: London, UK, 1995; ISBN 9780340632079. [Google Scholar]
- Lv, K.; Zhu, C.; Zheng, J.; Wang, X.; Chen, B. Precipitation of T1 phase in 2198 Al–Li alloy studied by atomic-resolution HAADF-STEM. J. Mater. Res. 2019, 34, 3535–3544. [Google Scholar]
- Kermanidis, A.; Charalampidou, C.-M.; Goulas, I.; Skarvelis, P.; Alexopoulos, N.D. Fatigue and fracture behaviour of (Al-Cu-Li) AA2198 under different ageing conditions. Int. J. Fatig. 2024, 184, 108286. [Google Scholar]
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Alexopoulos, N.D. Artificial Ageing of Aeronautical Al-Cu-Li (2198) Sheets: Mechanical Behaviour and Corrosion Susceptibility. Eng. Proc. 2025, 90, 82. https://doi.org/10.3390/engproc2025090082
Alexopoulos ND. Artificial Ageing of Aeronautical Al-Cu-Li (2198) Sheets: Mechanical Behaviour and Corrosion Susceptibility. Engineering Proceedings. 2025; 90(1):82. https://doi.org/10.3390/engproc2025090082
Chicago/Turabian StyleAlexopoulos, Nikolaos D. 2025. "Artificial Ageing of Aeronautical Al-Cu-Li (2198) Sheets: Mechanical Behaviour and Corrosion Susceptibility" Engineering Proceedings 90, no. 1: 82. https://doi.org/10.3390/engproc2025090082
APA StyleAlexopoulos, N. D. (2025). Artificial Ageing of Aeronautical Al-Cu-Li (2198) Sheets: Mechanical Behaviour and Corrosion Susceptibility. Engineering Proceedings, 90(1), 82. https://doi.org/10.3390/engproc2025090082