Abstract AA7075-T6 aluminum alloy samples were shot peened at various peening pressures in the range of 10–70 psi to study their mechanical and tribological properties under dry mineral oil lubrication conditions. The surface roughness apparently increased with pressure. best bearing was obtained when process carried out highest pressure 70 psi. It found that hardness decreased wear samples. te...

Water vapor jet assisted metal cutting is a pollution-free green cutting technique. This paper has developed a three-dimensional finite element model of water vapor jet assisted cutting in order to understand the influence of its cooling and lubricating effect on cutting process. The cooling effect of water vapor jet is modeled with a convective heat transfer coefficient. A window with the temp...

A series of sebacic acid esters containing mercaptobenzothiazole and dialkylenedithiocarbamate, which are potential environmentally friendly lubricating grease additives, were synthesized. The tribological properties as lubricating additives in Li-soap greases were evaluated using a 4-ball tester and SRV tester. The results show that the series of sebasic acid esters with dioctyldithiocarbamate...

The CrS/NbC Co-based self-lubricating composite coatings were successfully fabricated on Cr12MoV steel surface by laser clad Stellite 6, WS₂, and NbC mixed powders. The phase composition, microstructure, and tribological properties of the coatings ware investigated by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive spectrometer (EDS), as well as dry s...

This work focused on the experimental study of grease lubrication mechanisms around contacts in radial ball bearing 6314. The main objective this was to show influence conformities and their impact bearings. For experiments, a tribometer ball-on-ring configuration used fluorescence microscopy chosen as observation method. results showed that, under starvation conditions, conformity 0.52 at velo...

Supraparticles are large clusters of much smaller colloidal particles. Controlling the shape and anisotropy supraparticles can enhance their functionality, enabling applications in fields such as optics, magnetics, medicine. The evaporation self-lubricating ouzo droplets is an easy efficient strategy to create supraparticles, overcoming problem “coffee-stain effect” during drop evaporation. Yet...