Hard alloy containing molybdenum

Details Hard alloy containing molybdenum Hard alloy containing molybdenum

C - Chemistry, Metallurgy

22

C

75/1.2

C22C 1/10 (2006.01)

Patent

CA 1178092

TITLE OF THE INVENTION A hard alloy containing molybdenum ABSTRACT OF THE DISCLOSURE This invention relates to a hard alloy comprising two phases of a hard phase consisting of at least one compound having crystal structure of simple hexagonal MC type (M: metal; C: carbon) selected from the group consisting of mixed carbides, carbonitrides and carboxynitrides of molybdenum and tungsten, and a binder phase consisting of at least one element selected from the group consisting of iron, cobalt and nickel, in which the hard phase is one prepared by carburizing an (Mo, W) alloy obtained by reducing oxides of molybdenum and tungsten with a particle size of at most 1 micron, is of coarse particles with a mean particle size of at least 3 microns and has a uniform molybdenum to tung- sten ratio in the particles, and which has a gross composi- tion within the range of shaded portion ABCDEA in Fig. 1.

378520

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