Structure and Properties of Multicomponent Surface Layers on Steel

L. I. Fedorenkova

Oles Honchar Dnipro National University, 72 Gagarin Ave., UA-49010 Dnipro, Ukraine

Received: 13.03.2020; final version - 15.04.2020. Download: PDF

The structure and properties of a multicomponent diffusion layer obtained on steel as a result of joint saturation with boron and other elements (silicon, molybdenum, tungsten) during chemical-thermal treatment (CTT) are investigated in this work. As a result of multicomponent saturation of the steel surface pre-treated by deformation of various intensities (electrolyte plasma, pressing, explosion) a multiphase microstructure of the diffusion layer with higher micromechanical characteristics of the steel surface in comparison with ordinary boron saturation is obtained. As established, the pre-treatment of steel surface at saturation under conditions of a multicomponent CTT accelerates diffusion processes and contributes to the spread of finely dispersed inclusions from refractory boride compounds to a greater depth. This ensures the formation of a multilayer complex coating with unique properties.

Key words: multicomponent saturation, multiphase microstructure, deformation pre-treatment, borides, wear resistance.



PACS:, 68.35.Dv, 68.35.Gy, 81.40.Lm, 81.65.-b, 81.65.Mq, 82.45.Hk

Citation: L. I. Fedorenkova, Structure and Properties of Multicomponent Surface Layers on Steel, Metallofiz. Noveishie Tekhnol., 42, No. 7: 989—996 (2020)

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