Effect of 0.7%C Steel Deep Drawing on Abrasive Wear Resistance

0.7%C steel was drawn on ambient temperature after processing in molten lead.Microstructure of cold drawing 0.7%C steel was examined by field emission scanning electron microscopy(FESEM).Tensile strength and micro-hardness of cold drawing 0.7%C steel was measured.Wear properties of cold drawing 0.7%C steel was evaluated using two body abrasive wear test.The worn surface was examined by SEM.The results show that deep drawing plastic deformation refined microstructure and improved mechanical properties of 0.7%C steel.Wear resistance of 0.7%C steel was improved with increasing true strain amount when alumina and quartz particles were used as abrasives.Using glass particles as abrasives,wear resistance of the steel was greatly improved with increasing strain amount.Grooving wear was a dominant mechanism when alumina and quartz particles were used as abrasives.In case of glass particles,with increasing true strain amount,grooving morphology disappeared and wear mechanism of the steel changed.