https://doi.org/10.1051/epjconf/201715104006
Melt Viscosity of the Soft Magnetic Nanocrystalline Fe72.5Cu1Nb2Mo1.5Si14B9 Alloy
1 Boris Yeltzin Ural Federal University, Ekaterinburg, Russia
2 Gammamet Research and Production Enterprise, Ekaterinburg, Russia
* Corresponding author: v.s.tsepelev@urfu.ru
Published online: 21 August 2017
Temperature dependences of the kinematic viscosity of a multicomponent Fe72.5Cu1Nb2Mo1.5Si14B9 melt have been studied. A critical temperature is detected above which the activation energy of the melt’ viscous flow changes. Comparison of the temperature dependences of the kinematic viscosity of the melts prepared from the initial ingot and an amorphous ribbon shows that the melt viscosity essentially depends on the initial structural state of the alloy. In amorphous ribbon produced in the mode with overheating, and the melt is above the critical temperature, the enthalpy of crystallization grows; the following heat treatment results in an increase in magnetic permeability.
© The Authors, published by EDP Sciences, 2017
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