The hydrogen solubility and its effect on the crystallization of Cu -
Ti and Ni - Ti glasses were studied by differential scanning calorimet
ry, thermogravimetry, and X-ray diffraction. Dependence of the crystal
lization products of the hydrogenated Ti-based alloys on the hydrogen
content was found. Whereas in Cu-Ti alloys hydrogenation leads to dras
tic decreasing in the thermal stability due to phase separation in the
amorphous slate and to formation of microcrystalline structure during
crystallization, in Ni-Ti system hydrogen produces hydrides with Ni a
s well with Ti, which after heat treatment decompose, and finally the
same crystalline phases as in unhydrogenated alloy are formed. The iso
thermal crystallization kinetics of the maximum hydrogenated Cu50Ti50
amorphous alloy was also investigated to obtain additional information
about this transformation leading to nano-crystalline material.