Phases formation during heating of Mg–Cu–Ag–Y bulk metallic glasses

High glass forming ability correlated with microstructure and hydrogen storage properties of a Mg–Cu–Ag–Y glass

“…The enthalpy of crystallization was obtained as the area of the first and second exothermic peak (H 1 and H 2 ). It is noted that Ag addition to Mg-Cu-Y alloys usually results in a more complex crystallization sequence instead of a single step transformation [29], in accordance with the wide SCL region.…”

“…Both T rg = 0.592 and γ = 0.414 refer to an excellent glass former [23,29]. At the glass transition, the thermogram exhibits the usual endothermic event (H g ) which corresponds to a structural relaxation.…”

Microstructural characterization of Mg-based bulk metallic glass and nanocomposite

“…It is generally assumed that only one kind of crystal (Mg 2 Cu) nucleate grows during primary crystallization in Mg-Cu-Y metallic glasses [3]. Similarly, Soubeyroux et al identified the Mg 2 Cu phase by neutron diffraction experiment of Mg 58.5 Cu 30.5 Y 11 metallic glass after annealing for 1 h at 443 K [24].…”

The influence of Ag substitution for Cu on glass-forming ability and thermal properties of Mg-based bulk metallic glasses

“…Among a large number of BMGs, Mg-based BMGs are highly interested due to their high specific strength, good thermal stability for thermoplasticity in supercooled liquid region, and advantages in hydrogen storage with light weight and low cost [5,6]. So far Mgbased BMGs have been mainly developed in two systems with composition formulas of Mg-(Cu,TM)-Ln (TM is transition metals nearby Cu, like Ag, Ni, Zn; Ln is one or two rare-earth metals like Y, Nd, Gd) and Mg-Ca-Zn [7][8][9][10][11][12][13][14]. The confusion principle of constituent element designing for high GFA alloys has been provided by Egami, Inoue, and Greer [15][16][17].…”