The International Nickel Company, Inc.

John Stanwood Benjamin

Robert Lacock Cairns

Jay Michael Larson

Timothy E Volin

Prealloyed powders, particularly of compositions which are difficult to work by conventional means, are subjected to forces such that strain energy is imparted thereto by virtue of which the prealloyed powders manifest low flow stress and a high degree of thermoplasticity.

Thermoplastic prealloyed powder

A powder metallurgy product comprising iron and chromium, and/or aluminum and characterized by elongated grains that are stable at elevated temperatures. A method of producing such a product, including mechanically alloying a suitable powder charge, consolidating the mechanically alloyed powder, working the consolidated product so as to achieve therein a reduction of at least about 10%; and, then, heating the worked product to produce coarse elongated grains therein. The product produced according to the present invention exhibits good oxidation resistance and good room temperature and elevated temperature strength and ductility.

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Suffern, NY, United States of America

John Stanwood Benjamin