The influence of pulse-plasma treatment on the phase composition and hardness of Fe-TiB2-CrB2 coatings
AUTHORS: A.B. Kengesbekov, B.K. Rakhadilov, Yu.N. Tyurin, N.M. Magazov, M.K. Kylyshkanov, Zh.B. Sagdoldina
PAGES: 155 - 162
This work are presented the research results of pulse plasma treatment influence on the phase composition, hardness, roughness and element composition of coatings on the bases of Fe-TiB2-CrB2. The Fe-TiB2-CrB2 coating was deposited by detonation method. The following pulse-plasma treatment was used to modify the structure and properties of the surface layers of the sprayed coating. The results of mechanical experiments showed that the hardness of Fe-TiB2-CrB2 coating increased after the treatment. On the basis of the X-ray analysis, it has been established that the increase of coating hardness is connected with phase transformations in a surface layer, in particular, with formation of oxide phases and increase of carbide particles quantity.
coating, detonation spraying, pulse-plasma treatment, hardness
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