Seeded growth of Ti-46Al-8Nb polysynthetically twinned crystals with an ultra-high elongation

Hao Jin^a^,^b, Qing Jia^a, Quangang Xian^a, Ronghua Liu^a, Yuyou Cui^a, Dongsheng Xu^a, Rui Yang^a^,^*(

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Fig. 5.. Optical microstructures of the Ti-46Al-8Nb PST crystals grew at the growth rate of 20 mm/h, showing (a) the microstructure of the beginning; (b) the microstructure of the end part of main body; and (c) the untransformed β dendrites morphology near the quench zone.