Prominent plasticity of Mg-based bulk metallic glass composites by ex-situ spherical Ti particles

Development and microstructure optimization of Mg-based metallic glass matrix composites with in situ B2-NiTi dispersoids

“…The characteristic plastic zone size R p calculated by Eq. (2) was $1.5 lm, also agreed well with other studies [24,25]. However, the average size (d) and mean inter-particle spacing (k) of A-SC were $8 and 12 lm, respectively, much larger than the characteristic plastic zone (R p ), $1.5 lm.…”

Enhanced Mechanical Properties of MgZnCa Bulk Metallic Glass Composites with Ti-Particle Dispersion

“…In previous studies, the energy of the shear band can be absorbed by the dispersed particles (such as Fe, Mo, Ti, or Nb particles) in the Mg-based amorphous matrix alloys, and the shear band cannot easily propagate across the particles, significantly enhancing the plasticity of Mg-based BMGCs. Therefore, the combination of the large volume fraction and small particle size would create small inter-particle spacing of the dispersion phase to confine the propagation of shear bands and avoid the materials failure [15,18]. However, this theory does not seem to be applicable in every situation.…”

“…Unfortunately, monolithic MgZnCa bulk metallic glasses are quite brittle, limiting their further applications [2][3][4][5][6]. There have hitherto been a number of studies reporting on effective methods that enhance the strength as well as the plasticity of Mg-based BMGCs through the dispersion of ductile metallic particles such as those of Mo, Fe, Nb, and Ti [7][8][9][10][11][12][13][14][15][16][17]. These ductile metallic particles can absorb the shear strain energy of shear bands, confine the propagation of shear bands, and significantly improve their plasticity.…”

Effects of metallic Ti particles on the aging behavior and the influenced mechanical properties of squeeze-cast (SiCp+Ti)/7075Al hybrid composites

“…Recently, it has been reported that metallic particles, such as Ti, Ni, Al, and Ta particles [17][18][19][20][21][22], are employed as reinforcements in metal matrix composites to improve plasticity and fracture toughness. The addition of these metallic particles exerts a significant effect on the microstructures and the mechanical properties of the as-prepared AMCs [18,19,22].…”