Application of ultra-high-strength aluminium alloys in aerospace

Material is the basis of aircraft structure, and ultra-high-strength aluminium alloys will occupy a large proportion in the structure of large aerospace as a very important material for aircraft aluminum structure due to its high specific strength, good forming and processing performance and good corrosion resistance.

From Boeing 707 to Boeing 787 and A380, the new generation of large civil airliner has undergone great changes in terms of comfort, safety, economy and other major performance indicators of civil aircraft. Fatigue strength of better materials, to in addition to consider the damage tolerance, while taking into account the corrosion resistance and low cost of the new requirements, so the main structure of the material has also undergone great changes, especially with the amount of advanced composite materials increased significantly, the impact on the amount of traditional lightweight alloys, such as the B787 aircraft, the amount of composite materials up to 50%, while the amount of aluminum alloy is only 20%.

The civil airliner currently in use, such as the large airliner A380, ultra-high strength aluminium alloy dominates the role. The Boeing 777 is a large civil airliner launched by Boeing in the 1990s, using materials that are more mature in the late 80s and early 90s, or materials that were commercialised in the 90s. Its choice of materials is therefore somewhat representative.

Analysis of the models of the major international manufacturers of large civil passenger aircraft shows that ultra-high strength aluminium alloys still occupy a very important position as structural materials for aircraft. Combined with the overall situation of the current international vigorous development of civilian large passenger aircraft, it can be seen that ultra-high strength aluminium also has a very broad market application prospect in the aviation field.

The application of composite materials in aerospace structures has expanded, and the application of aluminium alloys in strategic missiles powered by solid rocket motors has decreased significantly. However, in the future for quite a long time, ultra-high strength aluminium alloy is still the main structural material of spacecraft such as launch vehicles, spacecraft and space stations, and is also one of the important structural materials for weapons systems such as missiles. At present, aluminium alloys are still the main structural components of spacecraft and space shuttles. If you need to buy ultra-high strength aluminium alloy, please contact us.