The Effects of Chemistry Variations in New Nickel-Based Superalloys for Industrial Gas Turbine Applications-Reference-Cited by-同舟云学术

The Effects of Chemistry Variations in New Nickel-Based Superalloys for Industrial Gas Turbine Applications

Published:2020-06-22 Issue:9 Volume:51 Page:4902-4921
ISSN:1073-5623
Container-title:Metallurgical and Materials Transactions A
language:en
Short-container-title:Metall Mater Trans A

Author:

Sulzer Sabin^ORCID,Hasselqvist Magnus,Murakami Hideyuki,Bagot Paul,Moody Michael,Reed Roger

Abstract

AbstractIndustrial 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.

Publisher

Springer Science and Business Media LLC

Subject

Metals and Alloys,Mechanics of Materials,Condensed Matter Physics

Link

https://link.springer.com/content/pdf/10.1007/s11661-020-05845-7.pdf

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