EFFECT OF MAGNETIC TREATMENT ON THE MICROSTRUCTURE AND ABRASIVE RESISTANCE OF WC-Co DETONATION-SPRAYED COATINGS

摘要

The effect of magnetic field on the phase composition and mechanical properties of VK-9 and VK-15 hardmetal detonation-sprayed coatings is studied. It is established that the magnetic field induces phase and structural transformations in sprayed coatings, such as reinforcement of the Co matrix due to the dissolution of WC in Co and the formation of W_xCo_yC_z binary. carbides. Magnetic treatment reduces residual internal stresses in the coating, decreases the amorphicity of its structure, and increases abrasive wear resistance.