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Abstract The corrosion behaviour of four different alumina-forming austenitic model alloys (Fe-Cr-Al-Ni based) in oxygen-containing molten Pb at 600 and 650 °C has been investigated. A thin protective oxide layer is… Click to show full abstract
Abstract The corrosion behaviour of four different alumina-forming austenitic model alloys (Fe-Cr-Al-Ni based) in oxygen-containing molten Pb at 600 and 650 °C has been investigated. A thin protective oxide layer is formed on all alloys after 2000 h at 600 °C, whereas increasing the temperature to 650 °C accelerates the oxidation and promotes dissolution attack. Only one composition with minor additions of Y and Nb and low Ni concentration shows corrosion resistance at 650 °C. Y and Nb have significant positive influence on the corrosion resistance and the phase composition of the alloys.
Journal Title: Corrosion Science
Year Published: 2021
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