The generation of wear debris of different morphology in the running-in process of iron and steels

摘要: Abstract This paper is a systematic study of the wear debris generated during process running in iron and steels, using ferrographic analyser, scanning electron microscopy energy-dispersive X-ray analysis. Wear tests were conducted on an MHK-500 (Tunken) “ring-on-block” machine. The materials 52100 bearing steel for ring specimens, 1045 with different degrees hardness G2500 cast block specimens. regime running-in was kept constant, load 375 N speed 1.3 m s −1 60 min. research involved mainly morphological quantitative analyses mechanisms steels. curves show excellent correlation weight loss surface roughness changes. showed morphologies, reflecting composite mechanism fatigue, adhesive, abrasive corrosive wear. fatigue can be considered as dominant since largest fraction plate-like spherical types.