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of γ phase with few slip systems in them severely limit the motion of the dislocations, resulting in the low ductility of the TiAl alloys. Previous studies [29,30] have revealed that the lattice......
]. In the process of electroplating, the nanoparticles at the grain boundary can prevent the movement of dislocations and recrystallization at high temperatures, which improves the microhardness and thermal......
shrinkage strains introducing more defects (dislocations and point defects, etc) at the interfaces of ABOw and matrix during grain growth so that the interface strength decreases during ......
significantly decreased the corrosion resistance of the deformed layer. Apart from the impact exerted by the microstructure modification, increased density of dislocations generated by shear......
in the form of fine particles (Figs. 6(a, c)). With prolonging heat treatment time, however, the δ phase is seen to grow into a fine acicular morphology, and dislocations become entangled around the δ......
leads to a decline in their resistance to dislocation motion. Moreover, at higher temperature, the dislocation movement velocity in the alloy is faster and the annihilation of these dislocations......
. 10. The highest ductility was associated with the annealed specimen despite the restricted deformability of Mg alloys. This can be explained by the increased mobility of dislocations after......
regions, as indicated in Fig. 3. In addition, structural defects such as dislocations were also detected in the high magnification HRTEM image of ZnSb phase (as indicated in Fig. 3......
sheet[J]. Journal of Central South University, 2016, 23(4): 765-777. [6] COTTRELL A H. Dislocations and plastic flow in crystals[J]. American Journal of Physics, 1954, 22(4): 242. [7] JIANG H, ZHANG Q......
the slip of dislocations. On the other hand, microcracks are generated around the secondary particles, and the expansion of the microcracks absorbs the strain energy. This is the strengthening......
