Characterization of phase chemistry and partitioning in a family of high-strength nickel-based superalloys
A family of novel polycrystalline Ni-based superalloys with varying Ti:Nb ratios has been created using computational alloy design techniques, and subsequently characterized using atom probe tomography and electron microscopy. Phase chemistry, elemental partitioning, and γ′ character have been analy...
| Main Authors: | , , , , |
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| Format: | Journal article |
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Springer US
2018
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| _version_ | 1797067443823181824 |
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| author | Lapington, M Crudden, D Reed, R Moody, M Bagot, P |
| author_facet | Lapington, M Crudden, D Reed, R Moody, M Bagot, P |
| author_sort | Lapington, M |
| collection | OXFORD |
| description | A family of novel polycrystalline Ni-based superalloys with varying Ti:Nb ratios has been created using computational alloy design techniques, and subsequently characterized using atom probe tomography and electron microscopy. Phase chemistry, elemental partitioning, and γ′ character have been analyzed and compared with thermodynamic predictions created using Thermo-Calc. Phase compositions and γ′ volume fraction were found to compare favorably with the thermodynamically predicted values, while predicted partitioning behavior for Ti, Nb, Cr, and Co tended to overestimate γ′ preference over the γ matrix, often with opposing trends vs Nb concentration. |
| first_indexed | 2024-03-06T21:56:21Z |
| format | Journal article |
| id | oxford-uuid:4d0bfd3c-0027-4d1f-8e62-088a5cc38bbd |
| institution | University of Oxford |
| last_indexed | 2024-03-06T21:56:21Z |
| publishDate | 2018 |
| publisher | Springer US |
| record_format | dspace |
| spelling | oxford-uuid:4d0bfd3c-0027-4d1f-8e62-088a5cc38bbd2022-03-26T15:53:08ZCharacterization of phase chemistry and partitioning in a family of high-strength nickel-based superalloysJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:4d0bfd3c-0027-4d1f-8e62-088a5cc38bbdSymplectic Elements at OxfordSpringer US2018Lapington, MCrudden, DReed, RMoody, MBagot, PA family of novel polycrystalline Ni-based superalloys with varying Ti:Nb ratios has been created using computational alloy design techniques, and subsequently characterized using atom probe tomography and electron microscopy. Phase chemistry, elemental partitioning, and γ′ character have been analyzed and compared with thermodynamic predictions created using Thermo-Calc. Phase compositions and γ′ volume fraction were found to compare favorably with the thermodynamically predicted values, while predicted partitioning behavior for Ti, Nb, Cr, and Co tended to overestimate γ′ preference over the γ matrix, often with opposing trends vs Nb concentration. |
| spellingShingle | Lapington, M Crudden, D Reed, R Moody, M Bagot, P Characterization of phase chemistry and partitioning in a family of high-strength nickel-based superalloys |
| title | Characterization of phase chemistry and partitioning in a family of high-strength nickel-based superalloys |
| title_full | Characterization of phase chemistry and partitioning in a family of high-strength nickel-based superalloys |
| title_fullStr | Characterization of phase chemistry and partitioning in a family of high-strength nickel-based superalloys |
| title_full_unstemmed | Characterization of phase chemistry and partitioning in a family of high-strength nickel-based superalloys |
| title_short | Characterization of phase chemistry and partitioning in a family of high-strength nickel-based superalloys |
| title_sort | characterization of phase chemistry and partitioning in a family of high strength nickel based superalloys |
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