Open AccessВлияние границ зерен на электропроводность медных сплавов
Author(s) -
Р.Г. Чембарисова
Publication year - 2020
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/jtf.2020.04.49087.250-19
Subject(s) - electrical resistivity and conductivity , materials science , pressing , alloy , metallurgy , grain boundary , severe plastic deformation , grain size , analytical chemistry (journal) , composite material , microstructure , chemistry , chromatography , electrical engineering , engineering
The analysis by analytical modeling methods of the experimentally detected lack of sensitivity of the resistivity of Cu-Cr, Cu-Cr-Zr alloys to the structural changes observed in samples subjected to severe plastic deformation was performed. Using the Cu-1.8 wt% Cr-0.8 wt% Zr alloy as an example, it is shown that an increase in the contribution to the resistivity of grain boundaries and precipitated small particles of secondary phases after equal-channel angular pressing is compensated mainly by a decrease in the contribution to the resistivity of alloying elements in the matrix.