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Abstract High temperature oxidation and corrosion behaviours of Ni–Fe–Cr alloys with different Cr contents (Cr = 0, 10, 15 wt.%) were investigated as inert anodes for aluminum electrolysis. Oxidation results at 960… Click to show full abstract
Abstract High temperature oxidation and corrosion behaviours of Ni–Fe–Cr alloys with different Cr contents (Cr = 0, 10, 15 wt.%) were investigated as inert anodes for aluminum electrolysis. Oxidation results at 960 °C in air showed that Ni–Fe–15Cr alloy formed a tri-layer oxide structure with an outer layer of (Ni,Fe) 3 O 4 spinel, a middle layer of (Ni,Fe,Cr) 3 O 4 spinel and an oxidation resistant inner layer of Cr 2 O 3 . Simultaneously, the tri-layer oxide scale exhibited good electrical property and corrosion resistance in aluminum electrolysis condition.
Journal Title: Corrosion Science
Year Published: 2019
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