TY - JOUR
T1 - The Effects of Chemistry Variations in New Nickel-Based Superalloys for Industrial Gas Turbine Applications
AU - Sulzer, Sabin
AU - Hasselqvist, Magnus
AU - Murakami, Hideyuki
AU - Bagot, Paul
AU - Moody, Michael
AU - Reed, Roger
N1 - Funding Information:
Financial support and material provision from Siemens Industrial Turbomachinery AB are acknowledged gratefully. The authors would like to thank Nils Ritter from the Friedrich-Alexander-University Erlangen-Nürnberg for manufacturing the alloys and Chris Salter from Oxford Materials Characterisation Service for carrying out EPMA analyses. PB and MM acknowledge financial support from the Engineering and Physical Sciences Research Council (EPSRC) under grant number EP/M022803/1, while RR acknowledges financial support from the EPSRC under grant number EP/M005607/1. The collaboration with HM at NIMS was supported by a Research Fellowship for SS from the Japan Society for the Promotion of Science (JSPS).
Funding Information:
Financial support and material provision from Siemens Industrial Turbomachinery AB are acknowledged gratefully. The authors would like to thank Nils Ritter from the Friedrich-Alexander-University Erlangen-Nürnberg for manufacturing the alloys and Chris Salter from Oxford Materials Characterisation Service for carrying out EPMA analyses. PB and MM acknowledge financial support from the Engineering and Physical Sciences Research Council (EPSRC) under grant number EP/M022803/1, while RR acknowledges financial support from the EPSRC under grant number EP/M005607/1. The collaboration with HM at NIMS was supported by a Research Fellowship for SS from the Japan Society for the Promotion of Science (JSPS).
Publisher Copyright:
© 2020, The Author(s).
PY - 2020/9/1
Y1 - 2020/9/1
N2 - Industrial gas turbines (IGT) require novel single-crystal superalloys with demonstrably superior corrosion resistance to those used for aerospace applications and thus higher Cr contents. Multi-scale modeling approaches are aiding in the design of new alloy grades; however, the CALPHAD databases on which these rely remain unproven in this composition regime. A set of trial nickel-based superalloys for IGT blades is investigated, with carefully designed chemistries which isolate the influence of individual additions. Results from an extensive experimental characterization campaign are compared with CALPHAD predictions. Insights gained from this study are used to derive guidelines for optimized gas turbine alloy design and to gauge the reliability of the CALPHAD databases.
AB - Industrial gas turbines (IGT) require novel single-crystal superalloys with demonstrably superior corrosion resistance to those used for aerospace applications and thus higher Cr contents. Multi-scale modeling approaches are aiding in the design of new alloy grades; however, the CALPHAD databases on which these rely remain unproven in this composition regime. A set of trial nickel-based superalloys for IGT blades is investigated, with carefully designed chemistries which isolate the influence of individual additions. Results from an extensive experimental characterization campaign are compared with CALPHAD predictions. Insights gained from this study are used to derive guidelines for optimized gas turbine alloy design and to gauge the reliability of the CALPHAD databases.
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U2 - 10.1007/s11661-020-05845-7
DO - 10.1007/s11661-020-05845-7
M3 - Article
AN - SCOPUS:85086774104
SN - 1073-5623
VL - 51
SP - 4902
EP - 4921
JO - Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
JF - Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
IS - 9
ER -