Abstract
Described the research results of hardening coatings coating modes influence on the microstructure of the surface layer of machine parts. Electroacoustic coating was used as a coating method. X-ray structural analysis and electron microscopy were used to investigate the microstructure of the coatings. The results obtained can be used to determine the optimal technological modes of coating.
Highlights
The problem of ultrafine-grained materials production intended for various fields of technology is the subject of constant discussion by the scientific community [1,2,3,4,5,6,7]
The formation of a fine-dispersed crystalline structure in the surface layer of the studied materials is possible under several conditions, which can be estimated from the data of theoretical calculations of the cooling parameters of the melt in the melt bath, as well as the movement of the crystallization front
According to the data of the X-ray analysis it was found that in case of sputtering by steel 10 (C10) electrode the grain size (CSR - coherent scattering regions) depending on electroacoustic coating (ELAC) modes varies in the range from 50 to 300 nm
Summary
The problem of ultrafine-grained materials production intended for various fields of technology is the subject of constant discussion by the scientific community [1,2,3,4,5,6,7]. Ongoing research in this area is a consequence of the discovery of regularities that lead to the emergence of new material properties (including metals and alloys based on them) as the geometric parameters of their crystal lattice decrease. Such coatings allow significantly (5-8 times) to increase the continuous operation time of parts and mechanisms, as well as forming tools [8,9]
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