Open AccessStudy of the influence of ultra disperse powder additives of the NiAl/Al<sub>2</sub>O<sub>3</sub> system on the tribotechnical properties of the frictional material based on copper
Author(s) -
A. Ph. Ilyushchanka,
А. В. Лешок,
А. И. Лецко,
Т. И. Пинчук
Publication year - 2022
Publication title -
doklady nacionalʹnoj akademii nauk belarusi
Language(s) - English
Resource type - Journals
eISSN - 2524-2431
pISSN - 1561-8323
DOI - 10.29235/1561-8323-2022-66-1-113-121
Subject(s) - materials science , tin , nial , composite number , bronze , metallurgy , surface roughness , composite material , friction coefficient , intermetallic , alloy
The results on the impact of additives on the ultra-fine composite powder system, obtained by MASVS on the tribotechnical properties of friction material based on tin bronze with 12 % of tin are presented. It is shown that the powder additive in the range of 0.5–2.5 % increased the dynamic friction coefficient from 0.040 to 0.051. The introduction of a 1.5 % composite powder reduced the surface roughness of the counter body from 2.9 to 0.9 μm. The change in the tribotechnical properties is due to the structural changes in tin bronze, the additive particles, the surface layer of the friction material and the counter body.