Abstract
The thermal shock behavior of cermets and cemented carbides was studied in detail by using unnotched smooth bar specimens. Thermal shock was given to the specimens by plunging them into a water bath at 20°C. After the thermal shock experiments, bending strength, micro vickers hardness and fracture toughness of the specimens were investigated. As a result, two different types of thermal shock behavior were observed between cermets and cemented carbides. These differences indicate that microcracks occur more easily in cemented carbides than cermets during thermal shock experiments.
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