Open AccessWear resistance of steels under conditions of dry sliding friction and electric current of high density
Author(s) -
В. В. Фадин,
М. И. Алеутдинова,
А. В. Колубаев,
Valeriya A. Aleutdinova
Publication year - 2014
Publication title -
aip conference proceedings
Language(s) - English
Resource type - Conference proceedings
SCImago Journal Rank - 0.177
H-Index - 75
eISSN - 1551-7616
pISSN - 0094-243X
DOI - 10.1063/1.4898903
Subject(s) - materials science , current density , metallurgy , current (fluid) , plasticity , composite material , alloy , shear (geology) , layer (electronics) , electrical resistivity and conductivity , wear resistance , electric current , instability , electrical contacts , surface layer , mechanics , physics , quantum mechanics , electrical engineering , engineering
The dependence of current density on the conductivity and the wear rate for the electric contact steel/steel 45 under conditions of dry sliding friction at current density higher 100 A/cm{2} has been presented. It has been determined that the increase in the content of alloying elements or reinforcing phase in the initial structure of the steel leads to lower strength of the surface layer, resulting in a high wear rate of contact and catastrophic wear at a low current density. It has been noted that the rapid destruction of the surface layer of alloy steels is caused by their low plasticity limits. The high values of wear resistance of non-alloyed steel at friction with current collection are due to the instability to the rotary and shear deformation, as well as to the formation of a viscous fluid on the sliding surface
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