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In this study a model capable of predicting a mild wear map for boundary lubricated contacts is presented and validated using model experiments. Both the transition from mild to severe wear as mild wear itself is modeled. The criterion for the transition from mild to severe wear is a thermal one. The mild wear model is based on the hypothesis that for an additive to protect the surface against severe...
Several types of nanoparticles have been experimentally investigated as possible lubrication agents and the results suggest that this is a promising idea. However, so far, MoS 2 nanotubes have not been experimentally evaluated in this respect. Accordingly, this study is focused on the tribological behavior of MoS 2 multi-wall nanotubes (MWNTs) as a potential additive in lubricating...
The objective of this study is to investigate the tribological and thermal properties of the recently developed Ag–MoS 2 nanoparticle-based multi-component lubricating system. To obtain greater tribofilm durability and to enhance the tribological and thermal properties of MoS 2 , a chemo-mechanical processing method has been developed for the synthesis of composite silver nanoparticles...
PEEK, an engineering polymer with many advantages such as lightweight, high thermal stability, high strength coupled with toughness, has often been used as a substitute for metals in applications such as bearings, piston parts, pumps and even biomaterials. However, it shows high coefficient of friction which results in high wear rate when used in tribological applications. This paper seeks to solve...
In this work, we have studied the influence of the crystal structure of IF-MoS 2 nanoparticles on the lubricating properties of the fullerenes added to a synthetic base oil. In steel contacts, we highlight the better lubricating properties of poorly crystallised IF-MoS 2 nanoparticles, with many defects, compared to those of perfectly crystallised spherical particles. We explain the...
This paper is concerned with an experimental investigation of the boundary lubrication properties of magnetorheological (MR) fluids under point sliding contacts between polytetrafluoroethylene (PTFE) and stainless steel tribopairs. The tribological properties of OM, OS, OX, HS, HSI and HQ grades of carbonyl iron based MR fluids were tested using a ball-on-three plates tribometer to ascertain the optimal...
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