Aluminum Company of America

David J Brownhill

Gregory J Hildeman

Arshad Hafeez

Linda C Labarre

Loose metal particles, or a consolidated metal particle composition, of an aluminum alloy consisting essentially of about 5 to 13% zinc, 1 to 3.5% magnesium, 0.5 to 3.0% copper, with iron being present up to 0.5%, with silicon being present up to 0.4%, plus nickel or cobalt or both being present in an amount effective essentially to place the iron in the incoherent dispersoid Al.sub.9 (Fe,M).sub.2, M being nickel or cobalt or both, M being present up to 0.75%, plus means being present for forming coherent dispersoids, said means being present up to 1%, balance aluminum.

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Plum Borough, PA, United States of America

David J Brownhill