Aluminium-lithium alloy

From the Moon to Mars

Published in Jonathan Allday, Apollo in Perspective, 2019

Orion's crew module bears a striking similarity to the Apollo command module. It has the same blunt angular cone shape sloped at about the same angle as Apollo's. However, it is larger, ∼3.4 tonnes less massive and built of the same aluminium−lithium alloy used for the space shuttle's external tank.

Influences of Sc(NO₃)₃ on characteristics of micro-arc oxidation coatings

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Journal Information

Published in Surface Engineering, 2023

Shaolan Yang, Ping Wang, Jiwei Liu

Aluminium-lithium alloy has been employed in aerospace fields, including aircraft fuselage skin and beams, which depend on its high strength, high modulus of elasticity, as well as low density [1,2]. Nevertheless, aluminium-lithium alloy is easily corroded by Cl−, H+ and other corrosion medium, due to the active lithium element, causing corrosion hazards such as pitting and intergranular corrosion, which restricts the application expansion of aluminium-lithium alloy in aerospace [3,4]. The corrosion resistance of aluminium-lithium alloy can be enhanced by surface-treatment technologies, including anodizing [5], shot peening [6] and MAO [7]. Compared with conventional anodizing and shot peening, MAO technique has become a research hotspot because of its simple process, environmental-friendly and excellent corrosion resistance of its products.

Aluminium-lithium alloy

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