Plasticity enhancement of Mg58Cu28.5Gd11Ag2.5 based bulk metallic glass composites dispersion strengthened by Ti particles

Effects of characteristics of Mo dispersions on the plasticity of Mg-based bulk metallic glass composites

“…It is of interest to note that even though the polycrystalline Mo dispersoid has lower YS than the Mg-based amorphous matrix, the hardness and YS of the Mg-BMGCs still presents small increasing trend with decreasing inter-particle spacing: Hv increases from 250 up to 280 and YS increases from 800 up to 900 MPa. This differs from the other BMGCs with ductile dispersoids [17,19,20], showing decreasing hardness with increasing ductile dispersoid volume fraction. It is suggested that the current porous Mo particles with nano grain size exhibits stronger strengthening capability.…”

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

“…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.…”

Surface Crystallization in Mg-Based Bulk Metallic Glass during Copper Mold Casting

“…Ma et al [17,18] optimized the composition of Mg-Cu-Y ternary alloy and Mg-Cu-Ag-Y quaternary alloy, improving the values to 9 mm and 16 mm, respectively. Up to date, this class of BMG can be made into 27 mm [19] and can be significantly toughened by ex situ addition of some second phases [20,21]. Therefore, Mg-based BMG and composites have been regarded as promising materials for engineering application.…”