Zhongning Shi, Junli Xu
This study investigates the effectiveness of copper-nickel superalloys, specifically Cu-Ni-Al, Cu-Ni-Fe, and Cu-Ni-Cr, as anodes for aluminum electrolysis. The primary objective was to assess their corrosion resistance in acidic molten salt electrolytes and oxidation rates in various atmospheres including air and oxygen. A series of tests conducted at temperatures ranging from 600°C to 900°C demonstrated that the Cu-Ni-Al alloy exhibited the best corrosion and oxidation resistance among the tested anodes. In comparison, the Cu-Ni-Fe alloy also displayed notable corrosion resistance, while the Cu-Ni-Cr alloy showed poor performance under similar conditions. Notably, the performance of the Cu-Ni-Al anode was significantly influenced by the concentration of alumina within the cryolite molten salt. The findings advocate further research into the potential of Cu-Ni-Al and Cu-Ni-Fe as inert alloy anodes, emphasizing their suitability for high-temperature and corrosive environments critical for aluminum electrolysis applications.
@article{94fdfb80-1d97-4512-98e8-91ec4bbdab79,
title={Copper nickel superalloys as inert alloy},
author={Zhongning Shi and Junli Xu},
year={2026},
language={en}
}TY - JOUR TI - Copper nickel superalloys as inert alloy AU - Zhongning Shi AU - Junli Xu PY - 2026 LA - en ER -
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