STUDY OF VIBRATION PROPERTIES OF CERAMIC-METAL NANOSTRUCTURAL TIN-CU COATINGS WITH DIFFERENT COPPER CONTENT 7 AND 14 AT. % ON CHROMIUM-NICKEL-VANADIUM STEELS
Abuova R.Zh. Ten E.B. Burshukova G.A.
2021National Academy of Sciences of the Republic of Kazakhstan
News of the National Academy of Sciences of the Republic of Kazakhstan, Series of Geology and Technical Sciences
2021#5Issue 4496 - 13 pp.
This paper studies the vibration properties of chromium-nickel-vanadium steels with a ceramic-metal nanostructured TIN-CU coating with different copper contents-7 and 14at.%. Among the advantages of a nanostructure with an increased area of intergranular boundaries there is a high value of viscosity and resistance to “brittle” cracks initiation and propagation; they are able to resist fracture for a long period under conditions of an external combined stress. Therefore, the invention of new generations of ceramic-metal nanostructured coatings with an increased area of intergranular and interlayer boundaries makes it possible to increase the durability, hardness in combination with sufficient viscosity, high adhesion strength with respect to the substrate material. For increasing the dissipative properties, we consider Cr-NI-V as an alloying agent, in such a way improving the parts performance, which contribute to the damping of nuisance vibrations and vibrations in alloys. The research procedure includes the study of the acoustic and vibration characteristics of the alloys, the mathematical processing of the results obtained. The research results show that the samples under study have higher strength and impact toughness indicators than their standard analogs. The use of a JSM-6700F field emission scanning electron microscope with a JED-2300F add-on for energy-dispersive spectrometry, JEOL (Japan), is associated with high image quality and resolution, which makes it possible to conduct a quantitative morphological analysis of the microscopic structure and elements composition, showing the presence of a nanostructure with layers of different nitride phases noticeably distinguishable in contrast. The presence of a nanostructured coating reduces the level of vibration acceleration.
Nanostructure , Noise-level meter , Scanning electron microscope , Vibration acceleration
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Satbayev University, Almaty, Kazakhstan
National University of Science and Technology MISIS, Moscow, Russian Federation
Satbayev University
National University of Science and Technology MISIS
10 лет помогаем публиковать статьи Международный издатель
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