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Structural short-range order of the phase in bulk Ti–Fe–(Sn) nanoeutectic composites
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View: Figures


Image of FIG. 1.
FIG. 1.

XRD patterns of ( and 3.85) showing the reflections from the (110) phase. The peak asymmetry is more pronounced in the case of , as shown in the middle of Fig. 1 , after normalizing the intensity and peak width.

Image of FIG. 2.
FIG. 2.

SEM backscattered electron images for (a) and (b) ingots showing the refinement of the eutectic spacing; inset: Fe maps for the same alloys with showing chemically homogeneous nanoeutectic phases. SAED patterns from the zone axis for (c) and (d) . Insets (c) and (d): schematic presentation of the diffraction pattern from the zone axis representing the presence of atomic displacement from the normal lattice site of the phase for {222} planes and the diffuse -like structure for positions of and instead of and for and normal diffraction spots.

Image of FIG. 3.
FIG. 3.

Fourier filtered high resolution TEM image and fast Fourier transformation (FFT) from the corresponding structure in the inset of (a) showing high lattice strain and diffuse scattering in FFT; (b) showing clear lattice fringes. (c) Magnified image of showing lattice distortion, size twins (marked by the dashed lines), and stacking faults in the bcc lattice terminated with a dislocation. The structural SRO of the phase coexisting with the “ -like” structure is schematically shown in (d).


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Structural short-range order of the β-Ti phase in bulk Ti–Fe–(Sn) nanoeutectic composites