Abstract
The ω phase is an important metastable phase in metastable ß titanium alloys due to its significant influence on the phase transition sequence, microstructure evolution and mechanical properties of the alloys. In the present work, a quantitative phase-field model has been developed to describe the microstructural evolution during the athermal β to ω phase transition based on exact solution of coherent elastic energy and couplings to Ti-Mo metastable thermodynamical database. While reflecting the essential physics of {111}β collapse mechanism that leads to displacive transition, the modeling appropriately described the morphology, orientation and growth process of the athermal ω phase upon different quenching temperatures and Mo contents, which agree remarkably well with available experimental data. Present approach also nicely predicts a selective variant growth which observed in the experiments.
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Tang, B., Cui, YW., Kou, H., Lai, M., Li, J. (2013). Quantitative phase field simulation of athermal ω transition in Ti-Mo alloys. In: Marquis, F. (eds) Proceedings of the 8th Pacific Rim International Congress on Advanced Materials and Processing. Springer, Cham. https://doi.org/10.1007/978-3-319-48764-9_341
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DOI: https://doi.org/10.1007/978-3-319-48764-9_341
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48586-7
Online ISBN: 978-3-319-48764-9
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