NIOSHTIC-2 Publications Search

Oxyreaction strengthening of metals.

Authors
Copeland-MI; O'Brien-WL; Blickensderfer-R
Source
U S Pat 3 821 036 1974 Jun; :
Link
NIOSHTIC No.
10011981
Abstract
A powder metallurgical process is provided for oxyreaction strengthening of metals in which ultrafine oxide particles are dispersed throughout a formed article after sintering. The matrix metal powder containing small amounts of oxygen is blended with a small amount of reactive metal powder, and the mixture is compacted and sintered. The reactive metal reacts with oxygen to form a coarse metal oxide. During heat treatment, ultrafine (0.05-0.2 Micrometer) reactive metal oxide particles form throughout the base metal. Preferred base metals include W, Mo, and their alloys, while preferred reactive metals include Si, Al, and group IVB elements of the periodic table.
Publication Date
19740628
Document Type
Patent
Fiscal Year
1974
NIOSH Division
ALRC
Source Name
Patent
State
OR
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division