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US 5,716,467 AGranted
Beryllium-containing alloys of aluminum and semi-solid processing of such alloys
AssigneeBrush Wellman Inc.
InventorsJames M. Marder, Warren J. Haws
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Abstract
Disclosed is a practical aluminum based alloy containing 1 to 99 weight percent beryllium, and improved methods of semi-solid processing of aluminum alloys containing beryllium. The present methods avoid molten beryllium, agitation of molten aluminum-beryllium alloys and the need for introducing shear forces by utilizing atomized or ground particles of beryllium mixed with solid, particulate or liquidus aluminum.
Claims2
A method for making an aluminum alloy containing beryllium comprising the steps of:
- (a) providing an aluminum component in powder form and a beryllium component in powder form;
- (b) mixing said aluminum and beryllium components;
- (c) melting said aluminum component at a temperature above approximately the solidus temperature of aluminum to create a semi-solid slurry of solid beryllium dispersed in liquid aluminum;
- and
- (d) in situ casting of the semi-solid slurry.
2 more elements
Dependencies are inferred from the claim text.