Glass forming ability of La-Al-Ni-Cu and Pd-Si-Cu bulk metallic glasses

Onset (T_m) and offset (T_l) melting temperatures of glass forming La-Al-Cu-Ni-(Co) and Pd-Cu-Si alloys were measured by studying the melting of these alloys using differential thermal analysis. The compositional dependence of glass transition temperature T_g, and the above two temperatures for these bulk amorphous alloys are presented. The effect of T₁ and T_rg on glass forming ability for these bulk amorphous alloys will also be evaluated. The correlation between glass forming ability and T_rg given by T_g/T₁ and T_g/T_m will be discussed.