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Strength Degradation of a Tungsten Carbide-Cobalt Composite at Elevated Temperatures
The objective of this work was to investigate the transverse rupture strength behavior of tungsten carbide blended with 10wt% Co as a function of temperature. The samples were tested in three-point bending flexure in the temperature range 25–1000°C. Specimens were also indented at room temperature t...
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Published in: | Materials characterization 1999-07, Vol.43 (1), p.27-32 |
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Main Authors: | , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | The objective of this work was to investigate the transverse rupture strength behavior of tungsten carbide blended with 10wt% Co as a function of temperature. The samples were tested in three-point bending flexure in the temperature range 25–1000°C. Specimens were also indented at room temperature to measure the crack size and the corresponding values of hardness and toughness. The results showed that the WC-Co composite suffered a strength loss at temperatures above 600°C. The fracture analysis indicated the presence of oxidation and microstructural defects in the samples tested at the higher temperatures. |
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ISSN: | 1044-5803 1873-4189 |
DOI: | 10.1016/S1044-5803(98)00056-4 |