8090 aluminum lithium alloy block is a light-weight, high-strength and corrosion-resistant metal structural material. It has a very broad application prospect in the aviation and aerospace fields. For every 1% of lithium added to the alloy, the density is reduced by 3%. The use of aluminum-lithium alloy instead of the conventional aviation aluminum alloy can reduce the structural quality by 5%~15%, and the elastic modulus Increase by 10~16%, and increase stiffness by 15%~20%, realize the lightweight of aviation and aerospace weapons and equipment, and meet the development needs of high-precision, ultra-long-range and ultra-high-speed strike.
1. Characteristics of
8090 aluminum lithium alloy block
The density is low, for every 1% of lithium added, the density is reduced by 3%, the carrier is reduced by 1kg, and the launch cost is saved by about 20,000 US dollars
High specific modulus and high specific strength, replacing conventional high-strength aluminum alloy can reduce the structural quality by 10%-20%, increase the elastic modulus by 6%, and increase the rigidity by 15%-20%
* Excellent corrosion resistance
* Good thermal conductivity and electrical conductivity
* Good processability (suitable for laser beam welding, friction stir welding, aging forming)
2. Physical property of
8090 aluminum lithium alloy block
|
Alloy |
Density ρ/g cm-3 |
Tension strength Rm/MPa |
Yield strength Rpo2/Mpa |
Elongation A/% |
Fracture toughness KⅠC/MPa |
Elastic modulus E/GPa |
|
8090 |
2.55 |
460 |
380 |
4 |
26 |
77.0 |
3. Application of
8090 aluminum lithium alloy block
|
Alloy |
Type |
Application |
|
8090 |
Sheet metal, forgings, extrusions |
It can replace 2014, 2024, 7010, 7075 and other aluminum alloys, and is widely used in floor mountings, brackets, ribs, frames, spars, stringers, stringers, ribs, bulkheads, and tail spine skins; flight control systems And avionics floor structure, nose, cabin top frame; flight control structure, skin siding (lower fuselage), cabin top frame, flat cover; Z-shaped reinforcement; protection device, repair; cabin top and side frame (Frames, ribs, joints, ribs); brackets, door rails, seat rails, etc. |
4. Dimension of
8090 aluminum lithium alloy block
|
Type |
Dimension |
|
Specs |
Slab |
Ф60mm×350mm，Ф90mm×350mm，Ф240mm×400mm，Ф400mm×800mm，800mm×600mm×200mm etc. |
|
Extrusion flat bar |
60mm×5mm，80mm×7mm，220mm×26mm，250mm×40mm etc. |
|
Extrusion round bar |
Φ9.5mm，φ12mm，φ26mm，φ30mm，Φ60mm，φ100mm etc. |
|
Forged plate |
55mm×400mm×600mm，80mm×400mm×500mm，110mm×350mm×400mm etc. |
|
Forged round bar |
Ф30mm-Ф400mm |
|
Rolled sheet size |
sheet（0.5-45mm）thickness ×1200mm width |
