Electrical resistivity and magnetic susceptibility of Co48Fe25Si4B19Nb4 + R (R = Nd, Sm, Tb, Yb) alloys in crystalline and liquid states were studied in present work. Electronic characteristics (effective magnetic moment, density of states at the Fermi level and paramagnetic Curie temperature) were calculated from experimental data. It is shown that all rare earth metals that were used should increase the glass-forming ability of alloys, but neodymium and samarium can have the greatest effect.

Amorphous ribbons of Al86Ni4Co4Yb6 and Al86Ni6Co2Yb6 compositions were produced by a standard planar flow casting method. According to the X-ray analysis, the as-cast ribbons were amorphous. Kinetics of crystallization and electroresistivity were studied with different heating rates. Alloys have a wide interval of amorphous phase, and the different combination of transitions metals influence on process of their crystallization.