Abstract
To study the tribological characteristics of the high-entropy alloy FeCoNiCrMn under MoS2-oil lubrication conditions in detail, physical testing is combined with finite element method. At room temperature, a ball-on-disk contact pair is selected with reciprocating motion of 5 mm. The single-factor tests are carried out with variables of load (10~50 N) and speed (4.167~20.833 mm/s), and the related wear equation is obtained. Through the static friction contact finite element simulation, the stress and deformation of the friction pair are investigated (the error about 1%), which provides a basis for the partial displacement boundary conditions of the dynamic contact simulation; in the dynamic contact friction simulation, changes in contact pressure and friction stress are analyzed at different loads and velocities. Furthermore, the dynamic friction contact pressure is used to optimize the wear equation and increase the correlation coefficient from 0.89 to 0.96.
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