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Development of Simultaneous Corrosion Barrier and Optimized Microstructure in FeCrAl Heat-Resistant Alloy for Energy Applications. Part 1: The Protective Scale

AuthorsPimentel, G.; Aranda, M. M.; Chao, Jesús; González-Carrasco, José Luis; Capdevila, Carlos
Issue Date2015
CitationJOM 67(9): 2047-2054 (2015)
Abstract© 2015, The Minerals, Metals & Materials Society. Coarse-grained Fe-based oxide dispersion-strengthened (ODS) steels are a class of advanced materials for combined cycle gas turbine systems to deal with operating temperatures and pressures of around 1100°C and 15–30 bar in aggressive environments, which would increase biomass energy conversion efficiencies up to 45% and above. This two-part paper reports the possibility of the development of simultaneous corrosion barrier and optimized microstructure in a FeCrAl heat-resistant alloy for energy applications. The first part reports the mechanism of generating a dense, self-healing α-alumina layer by thermal oxidation, during a heat treatment that leads to a coarse-grained microstructure with a potential value for high-temperature creep resistance in a FeCrAl ODS ferritic alloy, which will be described in more detail in the second part.
Publisher version (URL)http://dx.doi.org/10.1007/s11837-015-1425-5
Identifiersdoi: 10.1007/s11837-015-1425-5
issn: 1543-1851
Appears in Collections:(CENIM) Artículos
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