The graphite grades lubrication effect on tribotechnical properties of the metallic composite material

Bolsunovskaya T.A., Efimochkin I.Yu., Sevostyanov N.V., Burkovskaya N.P.
UDC
669.018.95
DOI
10.18577/2307-6046-2018-0-7-69-77
Article PDF (Russian) (770.22 KB)
How to cite
Bolsunovskaya T.A., Efimochkin I.Yu., Sevostyanov N.V., Burkovskaya N.P. The graphite grades lubrication effect on tribotechnical properties of the metallic composite material // Proceedings of VIAM. 2018. No. 7. DOI: 10.18577/2307-6046-2018-0-7-69-77. URL: https://test.viam.ru/en/journal/2018/7/8
Keywords
graphite, grain fineness, coarse-grained, finely-crystalline, synthetic, antifrictional, friction, wear, friction coefficient.
Abstract

The effect of different graphite grades in the copper-based metallic composite material on its tribotechnical properties is considered. Graphites were used as a solid lubricant with different crystal structure: synthetic, coarse-grained and fine-crystalline sintered, and finely dispersed colloidal. Tribotechnical tests data, according to the «finger–disk» testing scheme, have determined the influence of various sliding speeds and contact loading on the wear and friction coefficient depending on the graphite grades in composite material. It was shown that the tested graphite grades possess different tribotechnical properties associated with its manufacturing, dispersion and grain fineness.

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