The effect of oxidation on the subsurface microstructure of a Ti-6Al-4V alloy
Atom Probe Tomography (APT) and Transmission Electron Microscopy (TEM) are combined for examining α-case formation in Ti-6Al-4V, generated by air exposure at 800°C. Below the oxide surface, the microstructure separates into a nanoscale mixture of the α-Ti and α2 Ti3Al phases, of compositions Ti70-O3...
| المؤلفون الرئيسيون: | , , , , , , , , |
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| التنسيق: | Journal article |
| منشور في: |
Elsevier
2018
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| _version_ | 1826272496294297600 |
|---|---|
| author | Bagot, P Radecka, A Magyar, A Gong, Y Bell, D Smith, G Moody, M Dye, D Rugg, D |
| author_facet | Bagot, P Radecka, A Magyar, A Gong, Y Bell, D Smith, G Moody, M Dye, D Rugg, D |
| author_sort | Bagot, P |
| collection | OXFORD |
| description | Atom Probe Tomography (APT) and Transmission Electron Microscopy (TEM) are combined for examining α-case formation in Ti-6Al-4V, generated by air exposure at 800°C. Below the oxide surface, the microstructure separates into a nanoscale mixture of the α-Ti and α2 Ti3Al phases, of compositions Ti70-O30 and Ti65-O10-Al20-V5 respectively. The α2 phase exists either as bands or as nanoscale spherical precipitates. Nitrogen also penetrates the surface, but to a lesser extent, whilst vanadium partitions to α2 or in distinctly separate phases. The results demonstrate that oxygen stimulates precipitation of α2, helping to explain embrittlement produced in the O-enriched layer beneath the oxide. |
| first_indexed | 2024-03-06T22:13:29Z |
| format | Journal article |
| id | oxford-uuid:529c65f0-e262-40bc-b926-5876bef9d668 |
| institution | University of Oxford |
| last_indexed | 2024-03-06T22:13:29Z |
| publishDate | 2018 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | oxford-uuid:529c65f0-e262-40bc-b926-5876bef9d6682022-03-26T16:26:35ZThe effect of oxidation on the subsurface microstructure of a Ti-6Al-4V alloyJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:529c65f0-e262-40bc-b926-5876bef9d668Symplectic Elements at OxfordElsevier2018Bagot, PRadecka, AMagyar, AGong, YBell, DSmith, GMoody, MDye, DRugg, DAtom Probe Tomography (APT) and Transmission Electron Microscopy (TEM) are combined for examining α-case formation in Ti-6Al-4V, generated by air exposure at 800°C. Below the oxide surface, the microstructure separates into a nanoscale mixture of the α-Ti and α2 Ti3Al phases, of compositions Ti70-O30 and Ti65-O10-Al20-V5 respectively. The α2 phase exists either as bands or as nanoscale spherical precipitates. Nitrogen also penetrates the surface, but to a lesser extent, whilst vanadium partitions to α2 or in distinctly separate phases. The results demonstrate that oxygen stimulates precipitation of α2, helping to explain embrittlement produced in the O-enriched layer beneath the oxide. |
| spellingShingle | Bagot, P Radecka, A Magyar, A Gong, Y Bell, D Smith, G Moody, M Dye, D Rugg, D The effect of oxidation on the subsurface microstructure of a Ti-6Al-4V alloy |
| title | The effect of oxidation on the subsurface microstructure of a Ti-6Al-4V alloy |
| title_full | The effect of oxidation on the subsurface microstructure of a Ti-6Al-4V alloy |
| title_fullStr | The effect of oxidation on the subsurface microstructure of a Ti-6Al-4V alloy |
| title_full_unstemmed | The effect of oxidation on the subsurface microstructure of a Ti-6Al-4V alloy |
| title_short | The effect of oxidation on the subsurface microstructure of a Ti-6Al-4V alloy |
| title_sort | effect of oxidation on the subsurface microstructure of a ti 6al 4v alloy |
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