Microalloying as a key strategy to maximize the strength–ductility combination in dilute titanium alloys

A highly effective microalloying strategy for titanium hardening is presented. The main idea of this approach is to activate a novel strengthening mechanism, i.e. precipitation strengthening with nanoscale β particles located inside the α matrix. Such microstructures together with substantial grain...

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Bibliographic Details
Main Authors: P. Kwasniak, S. Delannoy, P. Vermaut, F. Sun, M.R. Zemła, T. Zakharava, F. Prima
Format: Article
Language:English
Published: Taylor & Francis Group 2025-07-01
Series:Materials Research Letters
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Online Access:https://www.tandfonline.com/doi/10.1080/21663831.2025.2536654
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Summary:A highly effective microalloying strategy for titanium hardening is presented. The main idea of this approach is to activate a novel strengthening mechanism, i.e. precipitation strengthening with nanoscale β particles located inside the α matrix. Such microstructures together with substantial grain refinement observed in the model, recrystallized Ti–Re alloys result in a 2.8 times increase in yield strength, relative to pure Ti and a high ∼35% elongation obtained at 0.5 wt.% (0.13 at.%) Re content. It is expected that similar properties can be obtained using other strong beta-stabilizers, making this method a universal way to improve the mechanical properties of Ti-based materials.
ISSN:2166-3831