Microstructure and mechanical properties of bulk Mg–Zn–Ca amorphous alloys and amorphous matrix composites

Enhanced mechanical properties and corrosion resistance of a Mg–Zn–Ca bulk metallic glass composite by Fe particle addition

“…1a shows unclear contrast in the backscatter electron scanning image, which indicated the pure amorphous structure of alloy I. [14,15,17]. However, with a spot of Fe particle addition, alloy II displayed an almost entirely dendritic morphology (Fig.…”

“…The Mg-Zn-Ca metallic glass system has been extensively investigated [14,15]. However, Mg-Zn-Ca glassy alloys are extremely brittle at room temperature as well as require the use of high-purity metallic elements and strict environmental conditions because the scantling of oxygen or other impurities dramatically deteriorate the glass forming ability (GFA).…”

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

“…Conversely, MgZnCa bulk metallic glass composites (BMGCs) were found to present much lower corrosion rates than the other Mg-based crystalline alloys. 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].…”

The seawater corrosion resistance and mechanical properties of Cu47.5Zr47.5Al5 bulk metallic glass and its composites

“…The as-cast (5 mm) composite exhibits some large fragments after fracture and abides by the "fragmentation mode," which usually occurs in brittle alloys (Fig. 7c) [29]. The fracture surface of the as-annealed Cu 47.5 Zr 47.5 Al 5 BMG composite consists of many steep slipped planes and some fractured crevices (Fig.…”