6–10 Jul 2026
University of the Western Cape
Africa/Johannesburg timezone
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An Integrated Predictive Framework for Metastable Beta-Titanium Alloys in Orthopaedic Applications

7 Jul 2026, 17:20
1h 20m
Great Hall (University of the Western Cape)

Great Hall

University of the Western Cape

Poster Presentation Track A - Physics of Condensed Matter and Materials Poster Session 1

Speaker

Lerato Raganya

Description

Accurate prediction of phase stability and mechanical compatibility is essential for developing metastable beta-type titanium alloys for orthopaedic applications. Current alloy design methods including molybdenum equivalence (Moeq), electron-to-atom ratio (e/a), bond order–metal d-orbital energy (Bo–Md), and the cluster-plus-glue-atom model, when used independently, often produce inconsistent predictions, especially for complex multicomponent systems. This study establishes a unified framework by systematically integrating these approaches. The evaluation of various titanium alloys shows that empirical methods facilitate rapid initial screening but lack precision, whereas electronic structure-based approaches offer greater predictive accuracy, although they require further refinement. By combining these models within a structured design strategy, prediction reliability is significantly enhanced, and inconsistencies are minimised. This framework provides a generalised methodology for designing metastable beta-type titanium alloys with improved properties, and it is adaptable to other alloy systems.

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Authors

Dr Babatunde Obadele (Botswana International University of Science and Technology (Department of Chemical, Materials and Metallurgical Engineering, Palapye, Botswana)) Prof. Elizabeth Makhatha (University of Johannesburg (Department of Metallurgy, Doornfontein, South Africa)) Lerato Raganya Dr Nthabiseng Moshokoa Dr Ronald Machaka

Presentation materials

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