Alloys-by-design: Towards optimization of compositions of nickel-based superalloys
Research output: Chapter in Book/Report/Conference proceeding › Chapter
Authors
Colleges, School and Institutes
External organisations
- OXFORD UNIVERSITY
Abstract
The composition of a range of different nickel-based superalloys are isolated using theory-based computational modeling, termed 'Alloys-by-Design' methods. Each alloy has been designed with different applications in mind. A polycrystalline alloy is designed for turbine disc applications, here emphasis is placed on the composition dependence of strength. Examples of the design tradeoffs faced when increasing alloy strength are presented. Three new single crystal alloy compositions are designed. They are (i) a second generation type alloy with a reduced level of rhenium, (ii) a creep resistant alloy designed for high performance jet applications and (iii) a low cost corrosion resistant alloy designed specifically for industrial gas turbine applications. In each case the newly designed alloys have been manufactured. Design critical properties are measured and compared with modeling predictions to test the accuracy of this alloy design approach.
Details
Original language | English |
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Title of host publication | Superalloys 2016 |
Subtitle of host publication | Proceedings of the 13th International Symposium on Superalloys |
Editors | Mark C. Hardy, Eric S. Huron, Uwe Glatzel, Brian Griffin, Beth Lewis, Cathie Rae, Venkat Seetharaman, Sammy Tin |
Publication status | E-pub ahead of print - 28 Oct 2016 |
Event | 13th International Symposium on Superalloys, SUPERALLOYS 2016 - Seven Springs, United States Duration: 11 Sep 2016 → 15 Sep 2016 |
Conference
Conference | 13th International Symposium on Superalloys, SUPERALLOYS 2016 |
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Country | United States |
City | Seven Springs |
Period | 11/09/16 → 15/09/16 |
Keywords
- Alloy development, Materials genome, Nickel-superalloy