Back to results
US 2015/0027595 A1Published application
Aluminum Material Having Improved Precipitation Hardening
AssigneeAirbus Defence and Space GmbH
InventorFrank PALM
Life of this patent
Estimating the term…
Abstract
An aluminum material for producing light-weight components includes aluminum (Al), scandium (Sc), zirconium (Zr) and ytterbium (Yb), where a weight ratio of scandium (Sc) to zirconium (Zr) to ytterbium (Yb) [Sc/Zr/Yb] is in a range from 10/5/2.5 to 10/2.5/1.25.
Claims14
An aluminum material for producing light-weight components, the aluminum material comprising:
- aluminum (Al), scandium (Sc), zirconium (Zr) and ytterbium (Yb), wherein a weight ratio of scandium (Sc) to zirconium (Zr) to ytterbium (Yb) [Sc/Zr/Yb] is in a range from 10/5/2.5 to 10/2.5/1.25.
A method for producing an aluminum material, the method comprising the steps:
- a) providing an aluminum (Al)-scandium (Sc)-zirconium (Zr) base alloy;
- b) adding ytterbium (Yb) to the AlScZr base alloy from step a) to produce a molten aluminum (Al)-scandium(Sc)-zirconium(Zr)-ytterbium (Yb) alloy;
- c) cooling the molten AlScZrYb alloy obtained in step b) in a temperature interval Tliquidus to T350° C. at a cooling rate of ≧100 K/sec to produce a solidified AlScZrYb alloy;
- and
- d) heat treating the solidified AlScZrYb alloy in a temperature range from 250 to 500° C.
2 more elements
Dependencies are inferred from the claim text.