ON SOME PARAMETERS OF DRY SLIDING CONTACT STEEL/STEEL AT HIGH CURRENT DENSITY
https://doi.org/10.17073/0368-0797-2017-1-43-47
Abstract
Behavior of AISI 1020 steel at dry sliding against AISI 1045 steel under electric current of high density was studied. The plastic deformation of surface layer, its temperature increasing, appearance of new phases and structure defects occur in these conditions. It leads to formation of friction induced structures layer. Contact current density is the main deterioration factor of external action on surface layer. It is shown that average contact temperature and thickness of friction induced structure layer increase at current density increasing. The character of change of wear intensity and electric conductance at changing of contact temperature is represented. It is established that wear intensity linearly depends on the contact temperature at normal wear regime. It is noted that regime of catastrophic wear is revealed as sharp increasing of wear intensity and synchronous decreasing of electric contact conductance at contact temperature of 500–600 °C. The thickness of friction induced structure layer achieved the value of 50 μm in these conditions.
About the Authors
M. I. Aleutdinova
Institute of Strength Physics and Materials Science SB RAS;
Seversk Technological Institute, National Research Nuclear University
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Research Associate,
Tomsk,
Seversk, Tomsk Region
V. V. Fadin
Institute of Strength Physics and Materials Science SB RAS
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Assist. Professor, Senior Researcher,
Tomsk
V. E. Rubtsov
Institute of Strength Physics and Materials Science SB RAS;
National Research Tomsk Polytechnic University
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Senior Researcher,
Tomsk
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Review
For citations:
Aleutdinova M.I., Fadin V.V., Rubtsov V.E. ON SOME PARAMETERS OF DRY SLIDING CONTACT STEEL/STEEL AT HIGH CURRENT DENSITY. Izvestiya. Ferrous Metallurgy. 2017;60(1):43-47. (In Russ.) https://doi.org/10.17073/0368-0797-2017-1-43-47
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