Abstract
Water vapor present in an environment is known to limit long-term usage of thin metallic components due to accelerated oxidation attack. This paper is focused on the comparative long-term cyclic oxidation resistance of several high-temperature foil alloys in air plus 10 vol.% water vapor exposed for 360 days at 760 and 871 °C. Alloy performance was ranked by assessing weight-change behavior, metal recession measurements, and a special oxidation attack parameter designed to take into account original foil thickness. It was found that the oxidation attack parameter was quite useful in discerning the alloy performances. The types of internal and external oxide scales evolved during oxidation reaction were studied using SEM equipped with EDS and an attempt was made to correlate the alloy performance with type of scale(s) formed during oxidation exposure.
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HAYNES®, 230®, 214®, HR-120®, 282®, HASTELLOY®, and NS-163® are registered trademarks of Haynes International, Inc.
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Deodeshmukh, V.P. Long-Term Performance of High-Temperature Foil Alloys in Water Vapor Containing Environment. Part I: Oxidation Behavior. Oxid Met 79, 567–578 (2013). https://doi.org/10.1007/s11085-012-9343-1
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DOI: https://doi.org/10.1007/s11085-012-9343-1