Abstract
In tires, cords consist of brass coated wires. Even if they are embedded in rubber matrix, wires remain sensitive to corrosion. This work proposes an evaluation of the electrochemical reactivity of the constituents of the wire: the steel, the brass, and the brass coated steel. Tests were immersed in solutions where pH, solution convection, and oxidizing species were controlled. Results confirm the establishment of galvanic coupling between iron and brass. In aerated and neutral solution, the dissolve dioxygen reduction acts on the interfacial pH modifying the reactivity of the brass coated steel.
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