Method of producing a dispersion-hardened metal alloy
AssigneeMotoren- und Turbinen-Union Muchen GmbH
InventorsWerner Huther, Wolfgang Betz, Gerhard Andrees
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Abstract
A method of producing a dispersion-hardened metal alloy in which oxide particles are distributed uniformly in the metal matrix. The oxide particles, in finely divided form, are added to a solution of the metal along with a deglomerating agent so as to be dispersed in the solution as a colloid. The colloid suspension is then atomized and reduced to form a powder of the alloy with the oxide particles uniformly dispersed therein.
Claims12
A method of producing a metal powder suitable for the production of a dispersion-hardened metal alloy, the metal powder having a dispersed phase of metal oxide in a metal alloy, said method comprising:
- forming a liquid solution in which a metal alloy is dissolved;
- adding to said liquid solution first particles which are not reactive with said metal alloy and which are also not reactive with said solution,
- adding a deglomerating agent to said solution so that the first particles are suspended therein and form a resultant colloidal suspension,
- atomizing said colloidal suspension to form atomized second particles of the dissolved metal alloy and also atomizing said first particles,
- drying the said first and second atomized particles;
- and
- reducing said atomized second particles to produce metal alloy powder particles in which the oxide form of said first particles is uniformly dispersed
Dependencies are inferred from the claim text.