Tribological behavior of black phosphorus nanosheets as water-based lubrication additives

Abstract Black phosphorus (BP) with a layered structure has been used gradually as lubrication additive in the tribological area. In this study, BP powders are produced via an easy method of high-energy ball milling using red raw material. Subsequently, nanosheets prepared liquid exfoliation N-methyl pyrolidone solvent. The behavior water-based additives (BP-WL) is evaluated under Ti6Al4V (TC4)/GCr15 contact. results suggest that 70 mg/L BP-WL sample exhibits excellent performance, whose coefficient friction (COF) and wear rate reduced by 32.4% 61.1%, respectively, compared those pure water. However, load increased, properties because agglomeration nanosheets. Based on experiments worn surface analysis, boundary mechanisms proposed. reduced, which primarily attributed to low interlaminar shear adsorption addition, tribochemical reaction film comprising TiO 2 , Al O 3 Fe effectively protects titanium alloy/steel from wear. This new can be process alloys.