The electrochemical behavior of aluminum alloyed with selected Group IV elements has been investigated in 0.1 N sodium chloride solution. Of the group IV elements studied only tin had a major effect on aluminum; Al‐Sn alloys carried surface oxide films of very low ionic resistance, exhibited potentials more active than −1.0v on the hydrogen scale and gave very large galvanic currents when coupled to mild steel cathodes. The conditions permitting entry of a group IV alloying addition from the metal into the surface oxide film have been partly clarified.
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Keir et al. (1967) studied this question.
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