THE INFLUENCE OF PRIMARY CARBIDES AND TEST PARAMETERS ON ABRASIVE ANDEROSIVE WEAR OF SELECTED PM HIGH-SPEED STEELS

The aim of this investigation has been to further the understanding of the contribution given by the primary carbides to the abrasive and er osive wear resistance of six HSS's, and to evaluate different test met hods. With abrasives significantly harder than the primary carbides of the HSS's, two- and three-body abrasion rates showed only small varia tions with primary carbide volume fraction, size and type. However, us ing abrasives/erodants softer than the carbides the qualitative result s were similar for the two- and three-body abrasion tests and for the erosion test, with the wear resistance increasing with the volume frac tion primary carbides. Copyright (C) 1996 Elsevier Science Ltd