Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 4 of 4
Full-Text Articles in Physical Sciences and Mathematics
Influence Of Plasma Electrolytic Hardening Modes On The Structure And Properties Of 65g Steel, B. K. Rakhadilov, R. S. Kozhanova, D. Baizhan, L. G. Zhurerova, G. U. Yerbolatova, A. A. Kalitova, L. N. Zhanuzakova
Influence Of Plasma Electrolytic Hardening Modes On The Structure And Properties Of 65g Steel, B. K. Rakhadilov, R. S. Kozhanova, D. Baizhan, L. G. Zhurerova, G. U. Yerbolatova, A. A. Kalitova, L. N. Zhanuzakova
Eurasian Journal of Physics and Functional Materials
This work presented a study of the structure, hardness and wear resistance of 65G steel treated with electrolyte-plasma hardening under different conditions. The electrolyte-plasma hardening technology and a laboratoryinstallation for the realisation of electrolyte-plasma hardening are also described. After electrolyte-plasmahardening,wehave established thata modifiedlayer consistsofthe a-phase (martensite) and M3C cementite. The study results showed that electrolyte-plasma hardening makes it possible to obtainlayersonthe65G steel surface thatprovidesan increasein microhardnessby2.6 times,wear resistanceby two times,resistance to abrasivewearby1.7 times compared to the original samples. In addition, local hardening ensures the achievement of technical and economic effects due to the absence of the need to isolate an …
Influence Of Pulsed Plasma Treatment On Phase Composition And Hardness Of Cr3c2-Nicr Coatings, D. N. Kakimzhanov, B. K. Rakhadilov, Yu. N. Tyurin, O. V. Kolisnichenko, L. G. Zhurerova, M. K. Dautbekov
Influence Of Pulsed Plasma Treatment On Phase Composition And Hardness Of Cr3c2-Nicr Coatings, D. N. Kakimzhanov, B. K. Rakhadilov, Yu. N. Tyurin, O. V. Kolisnichenko, L. G. Zhurerova, M. K. Dautbekov
Eurasian Journal of Physics and Functional Materials
In this study, the research results of the influence of pulsed plasma treatment on phase composition, hardness, and roughness of Cr 3 C 2 -NiCr coatings are presented. The Cr 3 C2 -NiCr coating was applied to substrate 12Kh18N10T stainless steel by detonation spraying method. To change the physical and mechanical properties of sprayed coating's surface layers, subsequent pulse plasma treatment was used. The pulse plasma treatment leads to changing the roughness of Cr 3 C2 -NiCr coating. The results of mechanical tests showed that after pulsed plasma treatment, the hardness of Cr 3 C 2 -NiCr coating is increased. …
Influence Of The Detonation-Spraying Mode On The Phase Composition And Properties Of Ni-Cr Coatings, M. Maulet, B. K. Rakhadilov, Zh. B. Sagdoldina, A. B. Kassymov, D. N. Kakimzhanov
Influence Of The Detonation-Spraying Mode On The Phase Composition And Properties Of Ni-Cr Coatings, M. Maulet, B. K. Rakhadilov, Zh. B. Sagdoldina, A. B. Kassymov, D. N. Kakimzhanov
Eurasian Journal of Physics and Functional Materials
In work considers the results of studies of the phase composition and mechanical-tribological properties of Ni-Cr detonation coatings obtained at different values of the volume of filling the detonation barrel with an explosive acetylene-oxygen mixture. Analysis of the obtained experimental results indicates that the phase composition and properties of detonation coatings strongly depend on the technological parameters of spraying. When the barrel is filled with an explosive gas mixture of 40%, the coating is not dense enough, with noticeable boundaries between individual particles, which may be the result of insufficient heating and acceleration of the particles of the sprayed powder. …
Changing The Structure And Phasestates And The Microhardness Of The R6m5 Steel Surface Layer After Electrolytic-Plasma Nitriding, B. K. Rakhadilov, Sh. R. Kurbanbekov, M. K. Kilishkhanov, A. B. Kenesbekov, S. Amanzholov
Changing The Structure And Phasestates And The Microhardness Of The R6m5 Steel Surface Layer After Electrolytic-Plasma Nitriding, B. K. Rakhadilov, Sh. R. Kurbanbekov, M. K. Kilishkhanov, A. B. Kenesbekov, S. Amanzholov
Eurasian Journal of Physics and Functional Materials
The article examines the changes of the structural-phase states and the microhardness of the R6M5 steel surface layer after electrolytic-plasma nitriding. It is found that after electrolytic-plasma nitriding of the R6M5 steel surface, diffusion layer is formed, which is a nitrogen martensite. The phase composition of the diffusion layer varies depending on the nitriding temperature. An increase of R6M5 steel microhardness, depending on structural-phase state, is found out. The main factor, in fluencing the increase of microhardness of R6M5 high-speed steel with electrolytic-plasma nitriding, is the formation of nitro . gen martensite with monophasic nitride Fe4N ( γ-phase), …