Manufacture of alloys containing dispersed fine particulate...

Details Manufacture of alloys containing dispersed fine particulate... Manufacture of alloys containing dispersed fine particulate...

C - Chemistry, Metallurgy

22

C

C22C 49/02 (2006.01) C22C 1/02 (2006.01) C22C 1/10 (2006.01)

Patent

CA 2362023

A method of preparing a metal alloy comprising a dispersion of particles of a first metallic material consisting of one or more refractory hard metals in a matrix of a second metallic material includes establishing a molten body of the second metallic material and introducing solid particles of the first metallic material into the molten body. Alternatively solid particles of a metalloid which reacts with the second metallic material to form particles of the first metallic material may be introduced into the molten body. The first metallic material has a higher melting point than the second metallic material and is substantially insoluble therein. The molten body is then stirred at a rate sufficient to effect shearing of the surfaces of the particles such that the surfaces are wetted by the molten body, and the molten body containing the resultant dispersion is cast in any desired manner.

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