The high demand for light metals as engineering materials lies in their high strength - to - weight ratio with good corrosion resistance in diverse environments. Passivation phenomena in these materials especially Al - based binary alloys have well been documented. However, the present study which aims at using model equations to investigate the passivation trend in various compositions of duplex Al - Zn alloy systems subjected to different concentrations of brine is totally new. The comparative plots of the generated values from the model equations with experimental data show that it correlated well with experimental observations.
Key words: Model equations, correlation, passivation, Duplex alloy systems.
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