General Description
With the fast development of modern aerospace industry,higher requirements for the comprehensive properties of high strength aluminum alloys are put forward. Meanwhile,the development of modern nuclear industry,transportation industry also need a high performance,lightweight and economic structural material.Baienwei has been in developing super high strength aluminum alloys with a greatly raised strength,excellent toughness and corrosion resistance for many years.Baienwei super high strength aluminum alloys provide the highest mechanical strength of all currently aluminum alloys matching that of most of steel and titanium alloys. Baienwei super high strength alloys offer a tensile strength of up to 850 MPa, good ductility and corrosion resistance similar to Al7075. Super high strength aluminum alloy is not only the aircraft major structure material for carrier rocket,spaceship and space station,but also one of the important structure materials for weapon system,for example,missile.Nowadays, super high strength aluminum alloy are also widely used in high performance engine components.Typical uses are:aircraft components,gear boxes, axles, fuse parts, instrument axles,missiles parts,valves,turbo parts etc.
Mechanical Properties Comparison:
|
Material |
Tensile Strength MPa |
Yield Strength MPa |
Hardness HB |
Elongation % |
|
Conventional casting 7xxx Al |
480-560 |
430-470 |
150 |
8%-9% |
|
Rapid solidification 7xxx Al |
600-730 |
580-670 |
200 |
10-12% |
Physical Properties Comparison:
|
7000 Aluminum Alloys |
Grain Size |
Segregation Degree |
Yield |
Ductility |
Stress Corrosion Resistance |
|
Conventional casting |
80-300μm |
generate macro segregation |
40-50% |
poor ductility |
fair |
|
Rapid solidification |
3-25μm |
no macro segregation |
70-80% |
high ductility |
3-5 times of common |