Temperature-frequency wear mechanism maps for a heat-resistant austenitic stainless steel

Abstract

A systematic experimental investigation is used to establish the influence of temperature and cycling frequency on the friction and wear behavior of the high-Cr, high-Ni heat-resistant austenitic stainless steel 310S (25%Cr–20%Ni) under gross slip fretting wear. The contact configuration is cylinder-on-flat using a like-on-like tribopair. Temperatures range from 20 °C to 700 °C and cycling frequencies range from 1 Hz to 50 Hz. A workflow to generate the wear maps with minimal number of tests, namely hierarchical probing and sampling strategy, is used to clearly establish the severe-to-mild wear transition associated with glaze layer formation. The critical temperatures related to this transition along with the number of cycles needed to establish effective glaze layer protection are obtained. A recent model reported in the literature that determines the number of cycles needed to establish effective glaze layer protection at different temperatures and frequencies gives good prediction if the temperature rise at the contact surface due to Coulomb heating is accounted for.