Method of making oxide dispersion strengthened powder

Details Method of making oxide dispersion strengthened powder Method of making oxide dispersion strengthened powder

C - Chemistry, Metallurgy

22

C

75/155, 75/1.22

C22C 1/05 (2006.01) C22C 1/10 (2006.01)

Patent

CA 1095745

ABSTRACT A process for preparing metal having a substantially uniform dispersion of hard filler particles. The process includes the steps of: admixing particles of a first metallic component with oxide particles having a negative free energy of formation at 1000°C of at least as great as that of aluminum oxide, and with a dissimilar second metallic component; and of milling for a period of time sufficient to produce powder characterized by a substantially uniform dispersion of hard filler particles and heterogeneous agglomerations of at least two metallic components. The first metallic component is from the group consisting of nickel, cobalt, iron and alloys thereof. Both the first and the second metallic component have an average particle size of less than 10 microns.

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