On a novel solid lubricant technique: A study on the tribological characteristics under dry slide condition

Abstract

The purpose of this study is to investigate the friction and wear behavior of novel electrostatic micro-solid lubricant (EMSL) bonded molybdenum disulfide (MoS₂) coatings on cemented carbide tools under dry slide condition. Pin-on-disc tribological tests between titanium alloy Ti–6Al–4 V and uncoated/coated cemented tungsten carbide–cobalt alloy (WC–Co) were carried out over a range of experimental domain of sliding speeds and normal loads. Specimen wear rate and friction coefficient were investigated. Tribological tests demonstrate that EMSL bonded MoS₂ coatings provide excellent anti-friction and reasonable wear performances. The mechanism of enhanced friction and wear behavior with the MoS₂ coatings is discussed. This study explores the feasibility of using EMSL coatings onto tribological components and opens a new way to implement bonded MoS₂ solid lubricant coatings as a new candidate for tribological operations.

Keywords

Electrostatic micro-solid lubricant coatings dry sliding tests friction wear volume wear rate

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