Phase Transformations and Grain Growth in β-stabilized TiAl Alloys |
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| Authors: | Dipl-Ing Thomas Klein Salar Niknafs Rian Dippenaar Helmut Clemens Svea Mayer |
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| Affiliation: | 1. Department of Physical Metallurgy and Materials Testing, Montanuniversit?t Leoben, Franz-Josef Stra?e 18, 8700, Leoben, Austria
2. Faculty of Engineering, University of Wollongong, Wollongong, Australia
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| Abstract: | Solid-state phase transformations and grain growth of an intermetallic γ-TiAl alloy were investigated in-situ using high-temperature laser scanning confocal microscopy (HTLSCM). During isothermal annealing in the single β-phase region, significant grain coarsening was observed. On cooling beneath the β-transus temperature with different rates, a CCT diagram was evaluated for the initiation of β to α phase transformation and changes in the morphology were observed. |
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