Ecae materials for high strength aluminum alloys
AssigneeHoneywell International Inc.
InventorsStephane Ferrasse, Susan D. Strothers, Patrick K. Underwood, Marc D. Ruggiero, Wayne D. Meyer, Lucia M. Feng, Frank C. Alford
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Abstract
A method of forming a high strength aluminum alloy. The method comprises subjecting an aluminum material containing at least one of magnesium, manganese, silicon, copper, and zinc at a concentration of at least 0.1% by weight to an equal channel angular extrusion (ECAE) process. The method produces a high strength aluminum alloy having an average grain size from about 0.2 μm to about 0.8 μm and a yield strength from about 300 MPa to about 650 MPa.
Claims20
A method of forming a high strength aluminum alloy, the method comprising:
- heating an aluminum material containing aluminum as a primary component and at least one of magnesium, manganese, silicon, copper, and zinc as a secondary component at a concentration of at least 0.1% by weight to a temperature from about 400° C. to about 550° C. to form a heated aluminum material;
- quenching the heated aluminum material to room temperature to form a cooled aluminum material;
- and
- subjecting the cooled aluminum material to an equal channel angular extrusion (ECAE) process while maintaining the cooled aluminum material at a temperature from about 20° C. to about 200° C. to form a high strength aluminum alloy, wherein the high strength aluminum alloy has an average grain size from about 0.2 μm to about 0.8 μm in diameter and a yield strength from about 300 MPa to about 650 MPa.
A method of forming a high strength aluminum alloy, the method comprising:
- heating an aluminum material containing aluminum as a primary component and at least one of magnesium, manganese, silicon, copper, and zinc as a secondary component at a concentration of at least 0.1% by weight to a temperature from about 400° C. to about 550° C. to form a heated aluminum material;
- quenching the heated aluminum material to room temperature to form a cooled aluminum material;
- aging the cooled aluminum material by heating to form aged aluminum material;
- and
- subjecting the aged aluminum material to an equal channel angular extrusion (ECAE) process while maintaining the aged aluminum material at a temperature from about 0° C. to about 200° C. to form a high strength aluminum alloy, wherein the high strength aluminum alloy has an average grain size from about 0.2 μm to about 0.8 μm in diameter and a yield strength from about 300 MPa to about 650 MPa.
Dependencies are inferred from the claim text.