Abstract
1. A study was made of some characteristics of penetration of molten cobalt in sintered hard alloys. It is shown that, for liquid phase migration under conditions similar to those prevailing in a semiinfinite rod, the distribution of cobalt along the specimen length is described by a relationship close to linear. 2. It was found that hard alloys have their “limit of impregnation” with the liquid phase, which corresponds to a cobalt content of about 32 wt.%. 3. The relationship has been determined between the thickness of the layer of increased γ phase content and the time of contact between a hard alloy and a cobalt melt.
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