John R Weber

US Patent:

44090382, Oct 11, 1983

Filed:

Jul 31, 1980

Appl. No.:

6/174181

Inventors:

John H. Weber - Sloatsburg NY

Assignee:

Novamet Inc. - Wyckoff NJ

International Classification:

C22F 104

US Classification:

148 127A

Abstract:

A method is provided for producing dispersion-strengthened mechanically alloyed Al-Li alloys with improved mechanical properties. The method comprises subjecting mechanically alloyed, degassed, consolidated Al-Li powders consisting essentially of from above 1. 5% up to about 3. 5% lithium from about 0. 4% up to about 1. 5% oxygen, from about 0. 2% up to about 1. 2% carbon and the balance essentially aluminum, to a heat treatment which will produce an aging response in the alloy.

US Patent:

44432496, Apr 17, 1984

Filed:

Mar 4, 1982

Appl. No.:

6/354884

Inventors:

John H. Weber - Sloatsburg NY
Paul S. Gilman - Pomona NY

Assignee:

Huntington Alloys Inc. - Huntington WV

International Classification:

B22F 904

US Classification:

75 05R

Abstract:

An improved process is provided for producing mechanically alloyed powders of simple and complex alloy systems. In the improved process, the mechanically alloyed powder is milled to an acceptable processing level in a gravity-dependent ball mill to obtain a powder characterized by a laminate-type microstructure which is substantially optically homogeneous at a magnification of 100. times. Such acceptable processing level is reached without processing the powder to a featureless microstructure or to saturation hardness.