8090 aluminium alloy

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

  1. ^ 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.
  2. ^ 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.
  3. ^ 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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