The Experimental and Theoretical Analysis of Wear Mechanisms of Metals and Hard Films in Tilted Pin on Plate Type Sliding Test

摘要

The purpose of this investigation is to analyse wear mechanism of several metals and hard films experimentally and theoretically in tilted pin on plate type sliding. Pin specimens were made of 0.45% carbon steel (S45C) and tip angle of pin edge was 90°. Plate specimens were made of metals (Carbon Steels, and Aluminium Alloys) and hard films (Anodic Oxide Films on Aluminium Alloy). Attack angle was varied from 4.5° to 85.5°. All of the wear tests were carried out under base-oil lubricated condition. Wear process was observed successively by using a CCD microscope and recorded with a VTR. The following results were obtained. Wear mechanism was classified into cutting, ploughing and plastic deformation of pin tip for metals, and cutting and plastic deformation of pin tip for hard films. Anodic oxide films (t = 20μm, 50μm) showed high wear resistance because these films can suppress cutting. A new wear map in tilted pin on plate type sliding was proposed theoretically which correlates well with the experimental results obtained.