Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440

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LASER-PLASMA STEEL PRODUCTS SURFACE REFINING

Chirkov A.M. 1 Koryakin D.V. 1 Pavlov M.D. 2 Cherdyntsev V.V. 2 Kaloshkin S.D. 2 Stepashkin A.A. 2
1 Federal Government-financed Educational Institution of Higher Professional Education «Vyatka State University»
2 National University of Science and Technology “MISIS”
The information about the possibility of use the laser-plasma surface refining of steel products to change the properties, structure and chemical composition in a thin surface layer was provide. The information about the main advantages of this method of treatment was presented. The main objective was to study the changes in the mechanical properties of the working surfaces, in particular hardness, and in chemical composition of the steel. Particular attention was paid to removal sulfur, phosphorus and carbon from surface layers of metal during the laser-plasma treatment with the melting. The analysis of changes in the structure and chemical composition of the surface layers was made as an example of laser-plasma treatment of the crankshaft of the domestic refrigeration compressor made of steel A12. The data obtained after the measurement of the microhardness of the surface layer was compared with the literature data.