TY - GEN
T1 - Evaluation of commercial and next generation alumina-forming austenitic foil for advanced recuperators
AU - Pint, Bruce A.
AU - Dryepondt, Sebastien
AU - Brady, Michael P.
AU - Yamamoto, Yukinori
PY - 2013
Y1 - 2013
N2 - Alumina-forming austenitic (AFA) steels represent a new class of corrosion- And creep-resistance austenitic steels to enable higher temperature recuperators. Several commercial batches of the first AFA composition have been produced with different thicknesses and widths over 39cm. This commercial AFA foil was successfully folded by two manufacturers. Creep and laboratory oxidation results at 650°-800°C are presented to compare to conventional recuperator alloy performance. While this initial effort was successful, concerns with cost and ease of production suggested that a leaner AFA composition with a lower final annealing temperature would be more attractive for commercial applications. Therefore, several new AFA compositions are being evaluated in laboratory trials and compared to the initial material for down selection of a better AFA composition for commercialization.
AB - Alumina-forming austenitic (AFA) steels represent a new class of corrosion- And creep-resistance austenitic steels to enable higher temperature recuperators. Several commercial batches of the first AFA composition have been produced with different thicknesses and widths over 39cm. This commercial AFA foil was successfully folded by two manufacturers. Creep and laboratory oxidation results at 650°-800°C are presented to compare to conventional recuperator alloy performance. While this initial effort was successful, concerns with cost and ease of production suggested that a leaner AFA composition with a lower final annealing temperature would be more attractive for commercial applications. Therefore, several new AFA compositions are being evaluated in laboratory trials and compared to the initial material for down selection of a better AFA composition for commercialization.
UR - http://www.scopus.com/inward/record.url?scp=84890195802&partnerID=8YFLogxK
U2 - 10.1115/GT2013-94940
DO - 10.1115/GT2013-94940
M3 - Conference contribution
AN - SCOPUS:84890195802
SN - 9780791855195
T3 - Proceedings of the ASME Turbo Expo
BT - ASME Turbo Expo 2013
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME Turbo Expo 2013: Turbine Technical Conference and Exposition, GT 2013
Y2 - 3 June 2013 through 7 June 2013
ER -