✍ Scribed by I.S. Golovin; A. Rivière
No coin nor oath required. For personal study only.
The Zener relaxation in three Fe-Al alloys with 22, 26 and 28 at.% Al has been studied by isothermal measurements of elastic-energy-dissipation as a function of vibrating frequency in the range from 10 -4 to 10 2 Hz. The activation energy of the Zener relaxation has been determined as follows (in kJ/mol): 238 in Fe-22Al of the disordered bcc (A2) structure, 270 in Fe-22Al of the D0 3 + A2, two phase structure, 235 in Fe-26Al of the B2 ordered structure, 286 in Fe-26Al of the D0 3 ordered structure, and 276 in Fe-28Al-3Cr at temperature close to the D0 3 ↔ B2 transition.
📜 SIMILAR VOLUMES
In the framework of the coherent potential approximation we show that the interaction parameter for disordered Fe᎐Al alloy strongly depends on the concentration. The calculations were provided within linear muffin-tin orbital formalism in the atomic sphere approximation. Calculation data for B2 phas