Abstract
The article presents the results of research into the structure and tribological testing of WC-Co detonation coatings with a barrel filling volume of 64 % and 74 %. X-ray diffraction analysis of the WC-Co coating re vealed that undesirable Co and W2C peaks disappear after detonation spraying. Morphological analysis showed that with 64 % and 74 % detonation barrel filling, the coatings had a dense structure with a thickness of 136 μm and 161 μm, respectively. EDS mapping showed a uniform distribution of elements. Tribological tests of the coating revealed that the friction coefficient of the samples ranged from 0.48 to 0.53 for 74 % and 0.55–0.57 for 64 %. Based on the results obtained, the optimal technological regime for obtaining wear resistant WC-Co coatings by detonation spraying was established.