A METHOD FOR IMPROVING IN A STEEL CORD THE RESISTANCE TO FATIGUE-FRETTING CORROSION

摘要

Hybrid steel cord comprising, in contact with one or more carbon steel wire(s), at least one stainless steel wire whose microstructure contains less than 20% of martensite (% by volume). Utilization of at least one stainless steel wire in a steel cord comprising carbon steel wires, to improve by contact the resistance of the said carbon steel wires to fatigue-fretting-corrosion, and hence the endurance properties of the steel cord itself. Utilization of cords according to the invention for the reinforcement of articles made of plastic arid/or rubber. Articles of plastic and/or rubber reinforced with such cords, in particular tyre envelopes or the carcass reinforcement plies of such envelopes.