Abstract
The thermal stability and characteristics of the surface of the Fe82Nb2B14RE2 (RE = Y, Gd, Tb, Dy) amorphous alloys were studied by differential scanning calorimetry and atomic force microscopy methods. Alloying of the Fe84Nb2B14 alloy by 2 at.% of RE results to increase of nanocrystallization temperature on 110 K for amorphous Fe82Nb2B14RE2 (RE = Y, Gd, Tb, Dy). Values of the roughness increased after thermal treatment for 1 h in air due to nucleation and growth of nanocrystals in bulk and surface oxidation of the amorphous Fe82Nb2B14RE2 alloys. The nanocrystallization of Fe82Nb2B14RE2 amorphous alloys after thermal treatment increases the catalytic activity for hydrogen evolution reaction.
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