Elucidation of the Seizure Mechanism of the Solid Lubricant Polymer Overlay Sliding Bearing Material

Abstract

The purpose of this study is to elucidate the seizure mechanism of the polymer overlay sliding bearing material. Five kinds of wear tests from running-in to seizure were performed and wear surfaces of the bearings were observed with an SEM/EDX and laser microscope in detail. As a result, the base material of aluminum alloy has been exposed by abrasive wear and shear fracture of the overlay and/or the interface between aluminum alloy and overlay. And the seizure occurs when temperature rapidly rises due to adhesion between shaft material and aluminum alloy.