TY - GEN
T1 - Comparison of the Effect of 2 at. % Additions of Nb and Ta on the 1100 °C Oxidation Behavior of Ni-6Al-(4,6,8) Cr Model Alloys
AU - De Vecchis, Rafael Rodriguez
AU - Pillai, Rishi
AU - Kisslinger, Kim
AU - Li, Meng
AU - Yang, Judith
AU - Gleeson, Brian
N1 - Publisher Copyright:
© The Minerals, Metals & Materials Society 2024.
PY - 2024
Y1 - 2024
N2 - To continue improving alloy performance in harsh service environments, the development of alumina-forming nickel-based superalloysNickel-based superalloy is essential. Current generations of these alloys heavily rely on the addition of refractory elements to enhance their mechanical propertiesMechanical propertiesat high temperaturesHigh temperature oxidation; however, a systematic understanding of how such additions affect the overall oxidationOxidation behavior is still not well established, particularly from the standpoint of predicting the transition from internal to external alumina formation. The present work seeks to better understand the intrinsic effects that common minor additions of Ta and Nb have on the oxidationOxidation behavior of alumina-scale-forming γ-Ni model alloysModel alloy. By combining a novel simulation approach with high-temperatureHigh temperatureoxidationOxidation experiments and advanced characterization techniques, the present study provides insightful details on the differing effects that 2 at. % addition of Ta and Nb have on the alumina scale formation of Ni-based alloysNi-based alloy during 1100 °C oxidationOxidation.
AB - To continue improving alloy performance in harsh service environments, the development of alumina-forming nickel-based superalloysNickel-based superalloy is essential. Current generations of these alloys heavily rely on the addition of refractory elements to enhance their mechanical propertiesMechanical propertiesat high temperaturesHigh temperature oxidation; however, a systematic understanding of how such additions affect the overall oxidationOxidation behavior is still not well established, particularly from the standpoint of predicting the transition from internal to external alumina formation. The present work seeks to better understand the intrinsic effects that common minor additions of Ta and Nb have on the oxidationOxidation behavior of alumina-scale-forming γ-Ni model alloysModel alloy. By combining a novel simulation approach with high-temperatureHigh temperatureoxidationOxidation experiments and advanced characterization techniques, the present study provides insightful details on the differing effects that 2 at. % addition of Ta and Nb have on the alumina scale formation of Ni-based alloysNi-based alloy during 1100 °C oxidationOxidation.
KW - High-temperature oxidation
KW - Ni-based superalloys
KW - Niobium
KW - Tantalum
UR - http://www.scopus.com/inward/record.url?scp=85202733446&partnerID=8YFLogxK
U2 - 10.1007/978-3-031-63937-1_55
DO - 10.1007/978-3-031-63937-1_55
M3 - Conference contribution
AN - SCOPUS:85202733446
SN - 9783031639364
T3 - Minerals, Metals and Materials Series
SP - 587
EP - 597
BT - Superalloys 2024 - Proceedings of the 15th International Symposium on Superalloys
A2 - Cormier, Jonathan
A2 - Edmonds, Ian
A2 - Forsik, Stephane
A2 - Kontis, Paraskevas
A2 - O’Connell, Corey
A2 - Smith, Timothy
A2 - Suzuki, Akane
A2 - Tin, Sammy
A2 - Zhang, Jian
PB - Springer Science and Business Media Deutschland GmbH
T2 - 15th International Symposium on Superalloys, ISS 2024
Y2 - 8 September 2024 through 12 September 2024
ER -