8090 aluminium alloy
Aluminum alloy with lithium, copper and magnesium
8090 aluminium alloy is produced using lithium, copper and magnesium as additives. It is commonly used in aerospace due to having a lower density than 6000 or 2000 series aluminium.[citation needed] 8090 aluminium was developed as a replacement to 2114 and 2024 alloys and has a higher elastic modulus and lower density.[1]
Chemical composition
Element | Content (%) |
---|---|
Aluminium | ≥ 93 |
Lithium | 2.2-2.7 |
Copper | 1.0-1.6 |
Magnesium | 0.6-1.3 |
Applications
Aluminium 8090 is used in aerospace applications due to its low density; for example it is used in the AgustaWestland EH101 helicopter.[2] 8090 can also be extruded.[3]
References
- ^ Giglio, M.; Manes, A. (2008-02-01). "Crack propagation on helicopter panel: Experimental test and analysis". Engineering Fracture Mechanics. 75 (3–4): 866–879. doi:10.1016/j.engfracmech.2007.02.024. ISSN 0013-7944.
- ^ Li, Shuang–Shuang; Yue, Xin; Li, Qing–Yuan; Peng, He–Li; Dong, Bai–Xin; Liu, Tian–Shu; Yang, Hong–Yu; Fan, Jun; Shu, Shi–Li; Qiu, Feng; Jiang, Qi–Chuan (2023-11-01). "Development and applications of aluminum alloys for aerospace industry". Journal of Materials Research and Technology. 27: 944–983. doi:10.1016/j.jmrt.2023.09.274. ISSN 2238-7854.
- ^ Reynolds, M.; Creed, E. (1987). "The Development of 8090 and 8091 Alloy Extrusions". Journal de Physique Colloques. 48 (C3): C3. doi:10.1051/jphyscol:1987323.
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