Abstract
Rolling-sliding tests on a low alloy carbonitrided steel were carried out in order to study its dry wear behaviour. The influence of different retained austenite contents was evaluated. Subsurface fatigue is considered to be the basic wear mechanism. The similar wear resistances shown in specimens with small and large amounts of retained austenite are attributed to the balancing effect on their mechanical properties of softening by dynamical recovery and hardening by plastic strain respectively.
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