Effect of Nb on nanoquasicrystalline Al-based alloys
Nanoquasicrystalline Al-based alloys, containing icosahedral particles in an -Al matrix, exhibit high strength at elevated temperature. The metastability of the quasicrystals can limit the use of these alloys. In the present work, the microstructural evolution of Al93(Fe3Cr2)7 and Al93Fe3Cr2Nb2 (at%...
| Main Authors: | , , , |
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| Format: | Journal article |
| Language: | English |
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2008
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| _version_ | 1797051828958920704 |
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| author | Galano, M Audebert, F Stoney, I Cantor, B |
| author_facet | Galano, M Audebert, F Stoney, I Cantor, B |
| author_sort | Galano, M |
| collection | OXFORD |
| description | Nanoquasicrystalline Al-based alloys, containing icosahedral particles in an -Al matrix, exhibit high strength at elevated temperature. The metastability of the quasicrystals can limit the use of these alloys. In the present work, the microstructural evolution of Al93(Fe3Cr2)7 and Al93Fe3Cr2Nb2 (at%) alloys was studied using heat treatments and structural characterization by XRD, TEM and STEM-EDX analysis. It was observed that the Nb is dissolved in the Al-Fe-Cr icosahedral phase. This provides higher thermal stability, retaining the fine nanoquasicrystalline microstructure for longer times at high temperature. |
| first_indexed | 2024-03-06T18:24:55Z |
| format | Journal article |
| id | oxford-uuid:079dca28-1fef-4bde-a97c-cf09464fad38 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T18:24:55Z |
| publishDate | 2008 |
| record_format | dspace |
| spelling | oxford-uuid:079dca28-1fef-4bde-a97c-cf09464fad382022-03-26T09:08:32ZEffect of Nb on nanoquasicrystalline Al-based alloysJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:079dca28-1fef-4bde-a97c-cf09464fad38EnglishSymplectic Elements at Oxford2008Galano, MAudebert, FStoney, ICantor, BNanoquasicrystalline Al-based alloys, containing icosahedral particles in an -Al matrix, exhibit high strength at elevated temperature. The metastability of the quasicrystals can limit the use of these alloys. In the present work, the microstructural evolution of Al93(Fe3Cr2)7 and Al93Fe3Cr2Nb2 (at%) alloys was studied using heat treatments and structural characterization by XRD, TEM and STEM-EDX analysis. It was observed that the Nb is dissolved in the Al-Fe-Cr icosahedral phase. This provides higher thermal stability, retaining the fine nanoquasicrystalline microstructure for longer times at high temperature. |
| spellingShingle | Galano, M Audebert, F Stoney, I Cantor, B Effect of Nb on nanoquasicrystalline Al-based alloys |
| title | Effect of Nb on nanoquasicrystalline Al-based alloys |
| title_full | Effect of Nb on nanoquasicrystalline Al-based alloys |
| title_fullStr | Effect of Nb on nanoquasicrystalline Al-based alloys |
| title_full_unstemmed | Effect of Nb on nanoquasicrystalline Al-based alloys |
| title_short | Effect of Nb on nanoquasicrystalline Al-based alloys |
| title_sort | effect of nb on nanoquasicrystalline al based alloys |
| work_keys_str_mv | AT galanom effectofnbonnanoquasicrystallinealbasedalloys AT audebertf effectofnbonnanoquasicrystallinealbasedalloys AT stoneyi effectofnbonnanoquasicrystallinealbasedalloys AT cantorb effectofnbonnanoquasicrystallinealbasedalloys |