Journal article
Composition of the nanosized orthorhombic O′ phase and its direct transformation to fine α during ageing in metastable β-Ti alloys
Scripta Materialia, Vol.170, pp.183-188
2019
Abstract
The structure and chemistry of the orthorhombic O′ phase after quenching of a Ti-23 at.%Nb-2 at.%O was measured using aberration-corrected transmission electron microscopy and atom probe tomography. The nanosized O′ phase, formed in the vicinity of ω, is enriched with oxygen and slightly depleted in Nb. Upon annealing, ω dissolves and the O′ phase develops in β up to 350°C, above which temperature it transforms to colonies of fine α phase. Another needle-like form of α with lower Nb content is thought to nucleate from Nb-lean regions related to spinodal decomposition of β.
Details
- Title
- Composition of the nanosized orthorhombic O′ phase and its direct transformation to fine α during ageing in metastable β-Ti alloys
- Authors
- Tong Li (Author)Minjie Lai (Author)Aleksander Kostka (Author)Steffen Salomon (Author)Siyuan Zhang (Author)Christoph Somsen (Author)Matthew S Dargusch (Author) - The University of QueenslandDamon Kent (Author) - University of the Sunshine Coast - School of Science & Engineering
- Publication details
- Scripta Materialia, Vol.170, pp.183-188
- Publisher
- Pergamon
- Date published
- 2019
- DOI
- 10.1016/j.scriptamat.2019.06.008
- ISSN
- 1359-6462
- Organisation Unit
- School of Science and Engineering - Legacy; University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering
- Language
- English
- Record Identifier
- 99450643402621
- Output Type
- Journal article
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web Of Science research areas
- Materials Science, Multidisciplinary
- Metallurgy & Metallurgical Engineering
- Nanoscience & Nanotechnology