Enhancement of heavy-duty friction and wear characteristics of cast-iron surface by electrolytic micro-textures filled with MoS2

Frictional properties of MoS2 on a multi-level rough wall under starved lubrication

“…The groove can not only store MoS 2 at the initial stage, but also transfer MoS 2 to the friction surface to provide the load bearing effect under the extrusion and friction of the asperity, and the free space can This journal is © the Owner 2023 store the wear debris generated by the furrow at the later stage. Experiments of Shen et al 10 showed that MoS 2 stored on the textured surface could accelerate the formation of tribofilm during reciprocating friction. This study verified that conclusion and also demonstrated that effective synergistic lubrication was achieved between MoS 2 and the textured surface, which can reduce the friction coefficient and prevent further wear.…”

“…For example, the addition of graphene was beneficial for MoS 2 to better adhere to the friction surface and slow down oxidation during the friction process, forming a stable adsorption film that improves lubrication. 9 Shen et al 10 showed that MoS 2 stored on the textured surface could enter the contact surface and accelerate the formation of tribofilms during reciprocating friction, and reduce the friction coefficient and wear depth by 8.4% and 51.5%, respectively. Most publications have studied the lubricity of the MoS 2 nano-lubricant under specific load and velocity, and lubrication failure usually occurs under the conditions of high velocity, heavy load, or insufficient lubrication.…”

Combined Effect of a Laser Cladded Coating and Surface Texture on Tribological Performance Under Dry Sliding and Starved Lubrication

“…Microdimples were fabricated on the polished Febased alloy coating by a reciprocating electrolyte jet with a prefabricated mask (REJP) machine. The detailed process of the microtextured surface was illustrated in [14].…”

“…The most widely used texturing techniques are laser surface texturing, microelectric discharge machining and electrochemical texturing [13]. Among these, electrochemical machining technology is a promising option to fabricate microtextures using simple equipment, low cost and nonthermal damage on the component surface [14].…”

Adaptability of piston skirt coatings on the tribological performance of heavy-duty diesel engine under low viscosity lubricant

“…(2021) studied the content of tungsten (W) in the Ni-W alloy coatings, and the results point out that when the content of tungsten (W) is 40.6 wt%, the coating has an excellent resistance to the scuffing and wear. Yan Shen et al (2021) reported the tribological of the microtextured cylinder liner with the MoS 2 -filled and non-MoS 2 -filled, which illustrate that compared with the microtextured cylinder liner with non-MoS 2 -filled, friction coefficient and wear depth of MoS 2 -filled microtextured liner were reduced by 8.4% and 51.5%, respectively.…”