Friction and wear behaviour of induction hardened ISO 42CrMo4 low-alloy steel under reciprocating sliding conditions

摘要

Tribological behaviour of induction hardened ISO 42CrMo4 low alloy steel was evaluated under unlubricated sliding conditions. The effect of hardening depth and test conditions on the friction and wear properties was investigated. The tribological tests were carried out on a reciprocating tribometer. Cylinder-on-flat contact configuration was adopted. The results showed that varying the hardened depth, normal load or sliding speed influences the friction coefficient, the friction energy, the wear volume and the wear coefficient. It was found, also, that a change in the wear behaviour occurs when a critical value of normal load is exceeded.