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- W1978394701 abstract "AbstractThe chemical failure of commercial FeCrAlRE (where RE is a reactive element) alloys, such as Aluchrom YHf and Kanthal AF foils (30–50 μm thick), is induced by oxidation, in air, at 800–950°C. This is also the life limiting process of this family of alloys at higher temperatures (≥1100°C) and occurs when the Al activity in the alloy becomes depleted below a critical level, as a result of oxidation. At this junction, the integrity of the protective alumina scale is not sustainable but continued ‘pseudo-protection’ can be provided by chromia formation beneath the alumina layer. Oxidation continues at a slow linear rate controlled by transport through the alumina scale. The duration of the pseudo-protection region can extend to several hundred hours and has considerable technological implications, if it could also be used in defining component lifetimes.Greater understanding is, therefore, required concerning the formation and growth of the chromia subscale, as this has received only limited attention..." @default.
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- W1978394701 date "2005-01-01" @default.
- W1978394701 modified "2023-09-26" @default.
- W1978394701 title "Characterisation studies of chromia formation on commercial FeCrAlRE alloy foils following chemically induced failure at 900°C" @default.
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- W1978394701 doi "https://doi.org/10.1179/mht.2005.056" @default.
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