Invention Grant
- Patent Title: Methods to increase solid solution zirconium in aluminum alloys
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Application No.: US15896615Application Date: 2018-02-14
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Publication No.: US10689733B2Publication Date: 2020-06-23
- Inventor: Michael J. Walker , Qigui Wang
- Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Applicant Address: US MI Detroit
- Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee Address: US MI Detroit
- Agency: Harness, Dickey & Pierce, P.L.C.
- Main IPC: C22C1/02
- IPC: C22C1/02 ; C22C21/00 ; C22C1/03 ; C22F1/04 ; C22C9/00 ; C22C45/00 ; C22C45/08

Abstract:
A method of making an aluminum alloy containing zirconium includes heating a first composition including aluminum to a first temperature. The first temperature is greater than or equal to a liquidus temperature of the first composition. The method further includes adding a second composition including a copper-zirconium compound to the first composition. The method further includes decomposing at least a portion of the copper-zirconium compound into copper and zirconium. The method further includes forming a third composition by dissolving at least some of the copper from the decomposing in the aluminum of the first composition. The method further includes cooling the third composition to a second temperature to form a first solid material. The second temperature is less than or equal to a solidus temperature of the third composition. The method further includes heat treating the first solid material to form the aluminum alloy containing zirconium.
Public/Granted literature
- US20180291480A1 METHODS TO INCREASE SOLID SOLUTION ZIRCONIUM IN ALUMINUM ALLOYS Public/Granted day:2018-10-11
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