John L Benjamin

US Patent:

39308413, Jan 6, 1976

Filed:

Jun 10, 1974

Appl. No.:

5/477596

Inventors:

Timothy Earl Volin - Tuxedo NY
John Stanwood Benjamin - Suffern NY
Jay Michael Larson - Warwick NY
Robert Lacock Cairns - Suffern NY

Assignee:

The International Nickel Company, Inc. - New York NY

International Classification:

B22F 900

US Classification:

75 5R

Abstract:

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.

US Patent:

40736482, Feb 14, 1978

Filed:

Sep 4, 1975

Appl. No.:

5/610132

Inventors:

Timothy E. Volin - Tuxedo NY
John S. Benjamin - Suffern NY
Jay M. Larson - Warwick NY
Robert L. Cairns - Suffern NY

Assignee:

The International Nickel Company, Inc. - New York NY

International Classification:

B22F 104

US Classification:

75245

Abstract:

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.

US Patent:

39921611, Nov 16, 1976

Filed:

Apr 3, 1974

Appl. No.:

5/457436

Inventors:

Robert Lacock Cairns - Suffern NY
John Stanwood Benjamin - Suffern NY

Assignee:

The International Nickel Company, Inc. - New York NY

International Classification:

B22F 300

US Classification:

291825

Abstract:

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.