Extrusion and rarefaction of lubricant in boundary layer is the key processes of adhesive wear of highly loaded tribocontacts

A comprehensive analysis of the Adhesion-Deformation, Elasto-hydrodynamic and Hydrodynamic friction models is presented, which describe different modes lubrication in accordance with Stribeck curve. The main provisions these are considered conjunction Langmuir-BET theory adsorption Hertz's elastic-deformation curvilinear contacts. It shown that revealed contradictions require their resolution, discovered multiple effects need a scientifically based interpretation. proposed to develop more generalized model wear on naturally occurring processes have been hidden from direct observations for long time. These are: Extrusion lubricating layers convergent elastically deformed Rarefaction divergent regions tribo-contacts. Understanding makes it possible predict localization sites causes occurrence primary subsequent acts adhesion surfaces following cycle: “rarefaction desorption layers, leads deformation destruction oxide films juvenile surface areas, after tearing fragment material bearing neoplasm protrusion shaft - areas contact. Then microcutting by this occurs release product region, accordingly change actual geometry tension tribo-contact. Further, other renewed contact, adhesive interaction according same mechanism. deep understanding reasons will make apply new highly efficient technological science methods order increase resource loaded tribo-systems machines mechanisms.