Phase composition and defect substructure of double surfacing, formed with V–Cr–Nb–W powder wire on steel


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The analysis of phase composition, defect substructure, and mechanical and tribological properties of Hardox 450 steel after single and double surfacing of C–V–Cr–Nb–W containing wire was carried out by methods of modern physical materials science. The increase in the wear resistance of the material compared to the original steel by 140–150 times and reduction of the friction coefficient by 2–2.5 times was established. The change in the fine structure and phase composition of the surfaced metal was analyzed. It was shown that the established effects could be associated with the formation of a multiphase nanoscale and submicron structure, hardening of which was associated with the formation of martensitic structure of α-matrix and the presence of a high volume fraction of carbide phase inclusions based on Fe, Cr, W and Nb. Formation of resurfacing led to repeated increase in the volume fraction of the carbide phase and the absence of the oxide phase.

作者简介

S. Konovalov

Siberian State Industrial University

编辑信件的主要联系方式.
Email: konovalov@physics.sibsiu.ru
俄罗斯联邦, Novokuznetsk, 654007

V. Kormyshev

Siberian State Industrial University

Email: konovalov@physics.sibsiu.ru
俄罗斯联邦, Novokuznetsk, 654007

V. Gromov

Siberian State Industrial University

Email: konovalov@physics.sibsiu.ru
俄罗斯联邦, Novokuznetsk, 654007

Yu. Ivanov

Institute of High Current Electronics, Siberian Branch

Email: konovalov@physics.sibsiu.ru
俄罗斯联邦, Tomsk, 634021

E. Kapralov

Siberian State Industrial University

Email: konovalov@physics.sibsiu.ru
俄罗斯联邦, Novokuznetsk, 654007

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