RESOURCE INDICATORS MANAGEMENT OF MODERN TECHNICS STRUCTURAL ELEMENTS THROUGH THE APPLICATION OF ENERGYSAVING TECHNOLOGIES OF SURFACE MODIFICATION
Journal Title: Проблеми тертя та зношування - Year 2017, Vol 74, Issue
Abstract
The paper studied the microhardness, structure, phase composition and durability of structural elements of modern technics (for example, steel 20X13) strengthened by a pulsed gasthermocyclic ionic nitriding. In strengthened surface layers there were determined the growth of micro-hardness up to 950 HV on the surface and the presence of two zones: nitride zone and the zone of internal nitriding. The depth of nitride zone is 6 ... 10 m, the total depth of the diffusion layer - 200…285 microns. It was set that due to the effect of the ionic nitriding processing on the strengthened surface layers properties occurs an increase of the average technical resource of machined parts by a factor 2,4. It is concluded that the use of the obtained results in practice when restoring and strengthening the surfaces of modern technics steel details gives the potential opportunities to increase durability while simultaneously significantly reduced repair costs.
Authors and Affiliations
O. V. RADKO
Keywords
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