Open AccessNitriding of multilayer steel materials
Author(s) -
А. И. Плохих,
K. B. Polikevich
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/560/1/012086
Subject(s) - nitriding , materials science , laminar flow , crystallite , metal , layer (electronics) , penetration (warfare) , composite material , metallurgy , penetration depth , thermodynamics , optics , physics , operations research , engineering
The paper presents results of the metallographic study aimed to determine the impact of the structurization degree of multilayer metal materials on the parameters of diffused layers in the course of thermochemical treatment by nitriding. It is demonstrated that reduction of the laminar layer thickness from 100 to 2 μm results in more than twofold increase of the diffused layer in comparison with the reference polycrystalline sample. It is determined that more significant structure refinement for multilayer materials particularly to the estimated layer thickness of 0.3 μm massively reduces the depth of diffusant penetration into the material along the laminar boundaries.