About the Project
Metastable titanium (Ti) alloys are the strongest amongst all classes of Ti alloys and have applications in the aerospace industry. During deformation, metastable beta phase (bcc) accommodates strain by a combination of mechanisms including slip, twinning and deformation-induced phase transformation. Composition, crystallographic texture and deformation path (compression, tension, bending, strain rate etc.) affect beta phase stability and its correlated the deformation accommodation mechanisms.
This project aims to understand the effects of beta phase stability and deformation path on deformation accommodation mechanisms using advanced experimental techniques such as in-situ mechanical testing using neutron diffraction coupled with in-situ electron back-scattering diffraction and/or scanning-transmission electron microscopy observations.
The scholarship is for a period of 3 years, subject to satisfactory progress with an annual stipend of $27,082 (indexed annually) and the possibility for a further 6 month extension. The start is in July-August, 2018.
Additional self-funded students could be taken on this project or applicants could compete for university scholarship in October, 2018, but to be competitive they have to have GPA>85 and several journal publications.
see also https://eis.uow.edu.au/content/groups/public/@web/@eis/documents/doc/uow247105.pdf
and https://www.researchgate.net/profile/E_Pereloma
Funding Notes
The candidate should possess an Honours degree (>80% GPA) in materials science/physics/metallurgical engineering or equivalent. The candidate should satisfy the English language requirements. For further details please refer to:
https://www.uow.edu.au/future/international/apply/english/index.html.
Desirable:
(a) Qualifications, for example – a Masters degree with a significant materials research component and/or significant research work experience in a materials related field.
(b) Knowledge of crystallography, deformation accommodation mechanisms and phase transformation.
(c) Experience in X-ray diffraction or electron microscopy.
(d) Experience in scripting in Matlab.
References
1. Ahmed, M., Gazder, A.A., Saleh, A.A., Wexler, D., Pereloma, E.V. Stress-induced twinning and phase transformations during the compression of a Ti-10V-3Fe-3Al alloy. Metall. Mater. Trans A (2016).
2. Ahmed, M., Wexler, D., Casillas, G., Savvakin, D.G. & Pereloma, E.V. Strain rate dependence of deformation-induced transformation and twinning in a metastable titanium alloy. Acta Materialia 2016, 104, 190-200.
3.Ahmed, M., Wexler, D., Casillas, G., Ivasishin, O.M. & Pereloma, E.V. The influence of β phase stability on deformation mode and compressive mechanical properties of Ti-10V-3Fe-3Al alloy. Acta Materialia 2015, 84, 124-135.
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