Preparation of nanostructured materials having improved ductility
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United States of America Patent
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Apr 20, 2010
Grant Date -
Aug 21, 2008
app pub date -
May 22, 2006
filing date -
Sep 7, 2005
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Abstract
A method for preparing a nanostructured aluminum alloy involves heating an aluminum alloy workpiece at temperature sufficient to produce a single phase coarse grained aluminum alloy, then refining the grain size of the workpiece at a temperature at or below room temperature, and then aging the workpiece to precipitate second phase particles in the nanosized grains of the workpiece that increase the ductility without decreasing the strength of the workpiece.
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