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This article analyses mechanical properties (strength, toughness) and wear behaviour (in different wear conditions) of WC based cobalt bonded hardmetals (prospectively for metalforming), sintered by two different techniques: vacuum and compression sintering (sinterhipping). It was found that compared with ordinary sintering, the sinterhipping technology enables the improvement of hardmetal resistance to brittle fracture (failure caused by tension stresses) as well as to wear, especially in the conditions of prevailing adhesive surface failure (metalforming, particularly blanking). The results obtained are described by the Griffith's strength theory of brittle materials.

The present paper analyses mechanical properties and wear performance in different wear conditions of prospective for metalforming TiC based cermets sintered by two different techniques -ordinary vacuum sintering and compression sintering (sinter/hipping). It was found that the sinter/hipping technology enhances cermet resistance to a brittle failure in terms of transverse rupture strength and to wear, especially in the conditions of prevailing surface adhesion failure. The results are described by the classical Griffith's strength theory of brittle materials.