Open AccessPROPERTIES OF 15Cr12WNiMoV STEEL AFTER VACUUM ACTIVATED CHROMIUM PLATING OF ITS SURFACE
Author(s) -
S.G. Rudenky,
N.F. Kartzev,
А. А. Корнеев,
A.V. Kunchenko,
Yu. V. Kunchenko,
В.Г. Маринін,
Людмила Ивановна Мартыненко,
В.И. Коваленко,
M.O. Bortnytska,
T. P. Ryzhova,
I.A. Lashenko,
S.V. Gozhenko,
Yevgeniy A. Krainyuk
Publication year - 2021
Publication title -
problems of atomic science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.216
H-Index - 17
eISSN - 1562-6016
pISSN - 1682-9344
DOI - 10.46813/2021-132-129
Subject(s) - chromium , materials science , chrome plating , metallurgy , plating (geology) , ultimate tensile strength , nitriding , diffusion , layer (electronics) , composite material , electroplating , geophysics , geology , physics , thermodynamics
In this work, we studied the properties of samples from steel 15Cr12WNiMoV after vacuum activated chromium plating at temperatures of 1070 and 1100 °C for 4 and 10 h. It was found that after chemical-thermal treatment on the samples a diffusion layer with a thickness of 50 to 130 µm is formed, consisting of 56…82 wt.% of chromium, the rest is iron. Metallographic studies were carried out on the samples and tests for heat resistance were carried out at a temperature of T = 900 °C. It was found that chrome-plated samples significantly exceed the initial samples and nitrided ones in terms of heat resistance. Tests of samples for tensile strength after chromium plating showed a significant increase in strength indicators for ultimate strength and yield strength. The plasticity characteristics of these samples are reduced.