Correlation of transverse rupture strength of WC-Co with hardness

The transverse rupture strength (TRS) of WC-Co composites is often loosely viewed as an equivalent of “toughness” which increases as hardness decreases in the industry. The results of this study, conducted using a controlled group of WC-Co samples with consistent TRS values, suggest a different correlation between the TRS and hardness of WC-Co composites. It was shown that TRS is closely related to the hardness and facture toughness. Within a hardness range of 800