Wear ferritic and austenitic steels under the influence of loose particles of coke

Abstract

The aim of this work is to elucidate the characteristics of wear of AISI 304 and Cт. 3 steels at the friction on the coke. Tests were carried out on abrasive wear by rotation of steel samples on the powder coke with a variable pressing force on the samples. Abrasive wear, hardening under compression, microhardness near the friction surface, the fracture at friction surface were investigated. It has been shown that the characteristics of strain hardening of the material determine the wear resistance at abrasive wear. Differences in the nature of strain hardening of AISI 304 and Cт. 3 steels lead to the fact that at low pressures, wear resistance of ст. 3 is greater than of AISI 304 stainless steel. At pressures higher them 30 kPa, wear resistance of AISI 304 steel becomes greater them of Cт. 3. Full text download