| Download | - View accepted manuscript: Omega-phase in Ti-Hf-Zr alloys produced by the hydride-cycle method (PDF, 1021 KiB)
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| DOI | Resolve DOI: https://doi.org/10.1139/P10-025 |
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| Author | Search for: Swainson, Ian P.1; Search for: Dolukanyan, Seda K.; Search for: Aleksanyan, Anahit G.; Search for: Shekhtman, Veniamin Sh.; Search for: Mayilyan, Davit G.; Search for: Yonkeu, André L.1 |
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| Affiliation | - National Research Council of Canada. NRC Canadian Neutron Beam Centre
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| Format | Text, Article |
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| Abstract | We report the presence of large proportions of ω-phase in Ti-Hf-Zr alloys, prepared using the hydride cycle technique. We show that the ω-phase extends across the concentration triangle of Ti-Zr-Hf and report the partitioning of the three metals across the two sites in this structure from neutron and X-ray data. We examine the symmetry of the order parameter governing the β-ω phase transition and show that a two-step model for the phase transition involving site ordering followed by displacement is not likely to be correct. We suggest that an interstitial solid solution of oxygen and octahedral vacancies exists, and that the observation of any ω-phase diffraction pattern of alloys of these metals at ambient temperature and pressure should be viewed as a potential sign of the presence of oxygen in the octahedral interstitial sites. |
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| Publication date | 2010-05-03 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 16984201 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 131b415a-a84d-48b7-a759-6873a127ba6b |
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| Record created | 2011-03-08 |
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| Record modified | 2020-04-17 |
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