Cemented carbide
AssigneeSandvik AB
InventorsSusanne Norgren, Mikael Christensen, Goran Wahnstrom
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Abstract
The present invention relates to a cemented carbide body containing from about 3 to less than about 15 wt-% binder phase and essentially WC as the remainder. By alloying the binder phase with from about 0.5 to about 15 wt-% Mn an increase in the strength of the WC/WC grain boundaries is obtained.
Claims11
A cpemented carbide body consisting essentially of WC and from about 3 to less than about 15 wt-% of a metal binder phase comprising from about 0.5 to about 15 wt-% Mn, remainder Co.
A method of making a cemented carbide body comprising one or more hard constituents and a binder phase based on cobalt by powder metallurgical methods milling, pressing and sintering of powders forming hard constituents and binder phase wherein Mn is present in the binder phase in an amount of from about 0.5 to about 15 wt-% of the binder phase.
Dependencies are inferred from the claim text.