Assessment of antifriction characteristics of friction pairs with solid-lubricating coatings under various operating conditions

The results of high-temperature tribological tests of carbon-containing material in friction on heat-resistant stainless steel 40X13 in the temperature range from 20 to 700 °C under atmospheric conditions are presented. Friction surface modifiers “Argolon-2D” material improve antifriction properties and decrease friction coefficient value. Friction coefficient when using Ni-Se-PTFE modifier at load of 0.67 MPa and speed of 0.16 m/s is less by 5% than at speed of 0.05 m/s, and at speed of 0.25 m/s friction coefficient is less by 13% than at speed of 0.05 m/s. At 500 °C and a load of 0.67 MPa the friction coefficient when using Ni-Se-PTFE modifier is 30% higher than when using InSb-PTFE modifier, and the friction coefficient when using CuO-PTFE modifier is 1.2 times higher than when using InSb-PTFE modifier.

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A Comparative Assessment of Tribotechnical Characteristics of Solid Lubricant Coatings Deposited Using the Closed Field Unbalanced Magnetron Sputtering Ion Plating Technique for Various Operating Conditions

Хопин

Sil'chenko

2021

PoHEI.MB

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This paper presents a comparative assessment of the tribotechnical characteristics of friction pairs with solid lubricant coatings (SLC) based on the MoS2 suspension application of VNII NP 212 and SLCCFUBMSIP deposited by the closed field unbalanced magnetron sputter ion plating (CFUBMSIP) of combined compositions MoS2+Ti, MoS2+Zr, MoS2+Cr , MoS2+W. It was established that under normal atmospheric conditions in the friction modes corresponding to the contact friction temperature of 157 °С, the life of SLCCFUBMSIP was 42.1% higher, and the coefficient of friction (ffr) was on average 2 times lower than that of SLC VNII NP 212. The average value of the life reduction coefficient for SLCCFUBMSIP during the transition from normal atmospheric conditions to water was 2.98. Under normal atmospheric conditions and in water, the SLCCFUBMSIP coefficient of friction was in the range of 0.02–0.04, and in an oil environment it ranged from 0.03 to 0.08. SLCCFUBMSIP based on pure MoS2 in normal atmospheric conditions, in water and oil was practically unusable.

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Assessment of antifriction characteristics of friction pairs with solid-lubricating coatings under various operating conditions

Cited by 7 publications

References 1 publication

Modification of the carbon-containing material friction surface with copper and selenium

Modification of the carbon-containing material friction surface with copper and selenium

Friction surface modifiers of carbon-containing material for high-temperature operation

A Comparative Assessment of Tribotechnical Characteristics of Solid Lubricant Coatings Deposited Using the Closed Field Unbalanced Magnetron Sputtering Ion Plating Technique for Various Operating Conditions

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