Carbide Sintered Body Containing Zirconium and Niobium

The present invention describes a carbide sintered body.

Sintered cemented carbide body comprises tungsten carbide, and a binder phase containing at least one or more of a solid solution of iron-group metal or alloy phases. Each solid solution contains zirconium, niobium and at least one of tungsten carbide and carbonitride of a combination of thereof.

Steps are as follows:

1) Providing a powder mixture and the powder mixture consisting of tungsten containing at least one iron group element or an alloy thereof and a binder metal powder carbides and carbonitrides of zirconium and niobium is at least one;

2) The zirconium carbides and carbonitrides of niobium powders include niobium carbide or zirconium carbonitride, the powder mixture into a green body, and in the green body of 1400-1560 ℃ vacuum sintering or HIP sintering.




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