RT Journal Article
T1 Steam oxidation resistance of slurry aluminum and aluminum/silicon coatings on steel for ultrasupercritical steam turbines
A1 Boulesteix, Claire
A1 Pedraza, Fernando
A1 Proy, Manuel
A1 Lasanta Carrasco, María Isabel
A1 De Miguel Gamo, María Teresa
A1 Illana Sánchez, Andrea
A1 Pérez Trujillo, Francisco Javier
AB Aluminum and aluminum/silicon coatings were deposited on ferritic–martensitic P92 and austenitic IN-800HT steels in a single-step process from an environmentally friendly slurry. A B2-FeAl phase formed on both the Al and the Al/Si coatings formed on P92. On IN-800HT, both Al and Al/Si grew a B2-(Fe,Ni)Al matrix. An additional ζ2-(Fe,Ni)3Al10 phase was also detected in the Al/Si coatings. The behavior of these coatings was then studied in steam at 650 °C and 1 bar for 2000 h. The uncoated P92 displayed a significant mass gain compared to the coated ones. The coatings also reduced the mass gains of the uncoated IN-800HT but to a lesser extent than in P92. The reduction in kinetics of the coated specimens was attributed to the major formation of a protective α-Al2O3 oxide.
SN 1573-4889
YR 2017
FD 2017-01-10
LK https://hdl.handle.net/20.500.14352/113897
UL https://hdl.handle.net/20.500.14352/113897
LA eng
DS Docta Complutense
RD 7 abr 2025