EFFECT OF 3RD-COMPONENT ON GLASS-FORMING ABILITY OF NI-MO ALLOYS

Effects of B. P, Si, or Zr on the glass-forming ability of the Ni-Mo a lloys are studied. Additions of up to 20 at. % of the above components to the Ni65Mo35 eutectic alloy decrease the liquidus and solidus temp eratures. The ternary alloys with boron or phosphor may be produced as melt spun ribbons with amorphous or amorphous-crystalline structures. The highest glass-forming ability is characteristic of the near-eutec tic Ni70Mo10P20 and Ni70Mo10B20 alloys. The thicknesses of the complet ely amorphous ribbons from these alloys exceed 160 and 120 mu m. respe ctively. and the T-x/T-l relationships are 0.64 and 0.57, respectively .