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(a) SEM image and XRD diffractogram (inset) of the as-cast alloy and (b) SAED patterns of with FeTi.
(a) SEM image of the fracture surface of a eutectic clearly showing a shear band and (b) high-magnification image revealing details within the shear band. The right side is a schematic illustration indicating the coalescence of lamellae between two neighboring subgrains.
(a) Illustration of the eutectic colony denoting the available dislocation motions. [(b) and (c)] Schematic evolution of shear bands: (b) rotation of neighboring subgrains leading orientations close to each other and (c) elimination of subgrain boundaries forming larger paths for dislocation motion.
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