The effects of chemistry variations in new nickel-based superalloys for industrial gas turbine applications

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...

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Main Authors: Sulzer, S, Hasselqvist, M, Murakami, H, Bagot, P, Moody, M, Reed, R
Format: Journal article
Language:English
Published: Springer 2020
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author Sulzer, S
Hasselqvist, M
Murakami, H
Bagot, P
Moody, M
Reed, R
author_facet Sulzer, S
Hasselqvist, M
Murakami, H
Bagot, P
Moody, M
Reed, R
author_sort Sulzer, S
collection OXFORD
description 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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spelling oxford-uuid:79ba321e-52ca-4437-87c7-1523f796758c2022-03-26T20:39:14ZThe effects of chemistry variations in new nickel-based superalloys for industrial gas turbine applicationsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:79ba321e-52ca-4437-87c7-1523f796758cEnglishSymplectic ElementsSpringer 2020Sulzer, SHasselqvist, MMurakami, HBagot, PMoody, MReed, RIndustrial 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.
spellingShingle Sulzer, S
Hasselqvist, M
Murakami, H
Bagot, P
Moody, M
Reed, R
The effects of chemistry variations in new nickel-based superalloys for industrial gas turbine applications
title The effects of chemistry variations in new nickel-based superalloys for industrial gas turbine applications
title_full The effects of chemistry variations in new nickel-based superalloys for industrial gas turbine applications
title_fullStr The effects of chemistry variations in new nickel-based superalloys for industrial gas turbine applications
title_full_unstemmed The effects of chemistry variations in new nickel-based superalloys for industrial gas turbine applications
title_short The effects of chemistry variations in new nickel-based superalloys for industrial gas turbine applications
title_sort effects of chemistry variations in new nickel based superalloys for industrial gas turbine applications
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