Abstract
The anodic dissolution behaviors of solid Al-Y alloy were investigated in LiCl-KCl eutectic without and with LiF by electrochemical techniques. The passivation phenomenon was observed in LiCl-KCl eutectic and disappeared when LiF concentration higher than 3% by weight. The results of XRD and SEM-EDS indicated the composition of passive film was Al2O3. Meanwhile, the dissolution rate and current efficiency were also calculated using ICP-AES. Furthermore, the mechanism of LiF inhibiting passivation was explored and found the addition of LiF could increase alumina solubility. The kinetic properties were compared in LiCl-KCl and LiCl-KCl-LiF melts. The transfer resistance decreased obviously in LiCl-KCl-LiF melts.
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