ASSESSMENT AND ANALYSIS OF IMPREGNATED TRIBOLOGICAL SYSTEMS WORKING AT ELEVATED TEMPERATURES

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ASSESSMENT AND ANALYSIS OF IMPREGNATED TRIBOLOGICAL SYSTEMS WORKING AT ELEVATED TEMPERATURES

Journal Title: Tribologia - Year 2014, Vol 256, Issue 4

Abstract

With emphasis on the reduction of frictional resistance and tribological wear of machine component parts, it becomes more and more important, in order to improve their efficiency, durability and reliability. Friction causes mostly negative effects, because the immediate consequence is tribological wear, leading to a gradual loss of reliability. This paper presents the results of tribological friction pairs working at temperatures of 300 and 500°C. The objects of the study were bearing sleeves with a density of 6.7 g/cm3 that had previously undergone a process of pressure impregnation by submicrometer MoS2 and WS2 solid lubricant particles. Friction and wear tests were conducted with the use of a ring-on-shaft TWT-500N testing machine. Analysis of the obtained results led to the conclusion that the application of MoS2 at 300°C and WS2 at 500°C reduces friction coefficient, respectively, to less than 0.08 and 0.05.

Authors and Affiliations

Joanna SULEJ-CHOJNACKA, Volf LESHCHYNSKY, Marcin LIJEWSKI, Stanisław ZIÓŁKIEWICZ

Keywords

EP ID EP262719
DOI -
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