Effect of abrasive particle size on fraction of debris removed from plowing volume in abrasive wear

Virgin surface sliding and repeated sliding tests were carried out for the purr metal pins and the hardened bearing steel (SUJ 2) pins against abrasiv e papers with CC100-CC1000 grains. The mean depth S-p/b of micro-grooves, t he ratio alpha(b) of the volume of removed as debris to the volume of micro -grooves and the mean surface slope angle a were calculated from the profil e curves measured at sampling intervals Delta x=1 mu m on worn surfaces and the relationships between their parameters were obtained experimentally. F rom the work presented the following results can be drawn. (1) The alpha(b) values obtained from the analyses of profile curves on worn surfaces showe d the sharp edged degrees of abrasive grains for each sliding distance. (2) The alpha(b) values could be estimated by the simple virgin surface slidin g test, which had the short and limited sliding distance depended on the ha rdness of metal pins. (3) The increase of the alpha(b) values with increasi ng hardness of metal pins are attributed to Little plastic deformation and little pile-up ridges generated in process of cutting. (C) 1999 Published b y Elsevier Science S.A. All rights reserved.