https://doi.org/10.1140/epjst/e2016-60212-x
Regular Article
Chemical interaction and thermodynamic properties of (Cu,Ni)-Zr glass-forming alloys
1 Institute of Metallurgy, Ural Branch of Russian Academy of Sciences, Amundsena 101, 620016 Ekaterinburg, Russia
2 Ural Federal University named after the first President of Russia B.N. Yeltsin, Mira str. 19, 620002 Ekaterinburg, Russia
a e-mail: kuliko@gmail.com
Received: 11 July 2016
Revised: 22 August 2016
Published online: 18 April 2017
The model of ideal associative solutions was applied to analyze the influence of strong chemical interaction in (Cu,Ni)-Zr melts depending on their glass-forming ability. Within the model framework thermodynamic properties of both Ni-Zr and Cu-Zr systems in the liquid state were calculated. The formation enthalpies of intermetallic compounds of these systems were redefined by the matching procedure, taking into account the additive manifestation of chemical interaction. It was suggested that directed (covalent) interaction causes formation of associative complexes which impedes diffusion and slows down crystallization. The intensity of interparticle interaction in these alloys is found to have no decisive influence on their glass-forming ability.
© EDP Sciences, Springer-Verlag, 2017
