Abstract
The corrosion inhibition of copper–nickel alloy by Benzotriazole (BTA) in 1.5M HCl has been investigated by weight loss and polarization techniques at different temperatures. Maximum value of inhibitor efficiency was 99.8% for BTA at 35°C and 0.1M inhibitor concentration, while the lower value was 86.8% at 55°C and 0.02M inhibitor concentration. The non-linear region of the polarization curve near the corrosion potential can be discussed depending on data of over potential as a function of current densities. These data can be analyzed by suggestion of a mathematical model to take into account the effect of mass transfer on activation process.
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