Effect of Sn and Cu on corrosion resistance of lamgalmnconi type alloys
This paper reports the results of investigation carried out to evaluate the corrosion resistance of tin and copper in as-cast alloys represented by two sequential series, first: La 0.7 Mg 0.3 Al 0.3 Mn 0.4 Co 0.5-x Sn x Ni 3.8 (x = 0.0, 0.1, 0.2, 0.3 and 0.5) and second: La 0.7 Mg 0.3 Al 0.3 Mn 0.4 Sn 0.5-y Cu y Ni 3.8 (y = 0.0, 0.1, 0.2, 0.3 and 0.5). Electrochemical methods, specifically, polarization curves have been employed in this study. Copper substitution yielded good overall performance of the alloys.
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