Zheng, Yufeng and Banerjee, Dipankar and Fraser, Hamish L (2015) A nano-scale instability in the beta phase of dilute Ti-Mo alloys. In: SCRIPTA MATERIALIA, 116 . pp. 131-134.
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A nano-scale instability in the beta phase resulting in the formation of the disordered orthorhombic O' phase has been discovered in a fairly dilute binary Ti-Mo alloy, using selected area electron diffraction and high resolution scanning transmission electron microscopy. The O' phase informed in the alloy when the Mo content exceeds a critical value. The instability occurs in beta-solutionized samples that have been quenched to room temperature and is found to co-exist with athermal omega to phase. Interestingly, this nano-scale instability, involving the {110}<1<(1)over bar>0> soft-phonon shuffle, occurs in the beta phase without deliberate additions of either interstitial or substitutional solutes. (C) 2016 Elsevier Ltd. All rights reserved.
| Item Type: | Journal Article |
|---|---|
| Publication: | SCRIPTA MATERIALIA |
| Publisher: | PERGAMON-ELSEVIER SCIENCE LTD |
| Additional Information: | Copy right for this article belongs to the PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND |
| Keywords: | Titanium alloys; Phase transformations; High-resolution electron microscopy; Nano-scale instability; O ` phase |
| Department/Centre: | Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy) |
| Date Deposited: | 28 Apr 2016 06:03 |
| Last Modified: | 28 Apr 2016 06:03 |
| URI: | http://eprints.iisc.ac.in/id/eprint/53710 |
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