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Full-Text Articles in Physical Sciences and Mathematics
Obtaining Multilayer Coatings By The Detonation Spraying Method, D. N. Kakimzhanov, B. K. Rakhadilov, D. B. Buitkenov, L. G. Zhurerova, M. K. Rakhadilov, D. K. Yeskermessov
Obtaining Multilayer Coatings By The Detonation Spraying Method, D. N. Kakimzhanov, B. K. Rakhadilov, D. B. Buitkenov, L. G. Zhurerova, M. K. Rakhadilov, D. K. Yeskermessov
Eurasian Journal of Physics and Functional Materials
This work were studied the effect of technological parameters of detonation spraying on the phase composition and tribological characteristics on the bases of NiCr and Al2O3 coatings. As well as therewas obtained and investigated multilayer coating on the basesof NiCr/NiCr-Al2O3/Al2O3. It was determined that during detonation spraying the phase composition of Al2O3 coatings strongly depends on the degree of filling the borehole with a gas mixture. The . -Al2O3 -phase content in the coatings increases when the degree of filling is 63% and 54%. Only one CrNi3 phase is observed on the diffractograms and only increase of reflex intensity (020) …
Effect Of The Detonation Spraying Mode On The Tribological Properties Of Nicr-Al2o3 Coatings, B. K. Rakhadilov, D. B. Buitkenov, E. Kabdykenova, Zh. B. Sagdoldina, L. G. Zhurerova
Effect Of The Detonation Spraying Mode On The Tribological Properties Of Nicr-Al2o3 Coatings, B. K. Rakhadilov, D. B. Buitkenov, E. Kabdykenova, Zh. B. Sagdoldina, L. G. Zhurerova
Eurasian Journal of Physics and Functional Materials
The article presents the study results of detonation spraying parameters on the phase composition and tribological properties of NiCr-Al 2 O 3 powder coatings. The spraying was carried out at a ratio of the acetylene oxygen mixture O 2 /C 2 H2 =1.856. The detonation barrel filling volume with an explosive gas mixture varied from 30% to 68%. It is determined that the phase composition of the NiCr-Al 2 O 3 coatings varies depending on the degree of detonation barrel filling. With an increase in the detonation barrels filling volume, the intensity of the NiCr diffraction peaks is decreased, and …