In situ Mössbauer-effect study of the kinetics of the σ-phase formation
Abstract
Kinetics of the σ-phase formation promoted by an isothermal annealing at T=600 and 700°C was investigated in a polycrystalline alloy of Fe 53.8Cr 46.2-0.1 at.%Ti by means of the in situ 57Fe Mössbauer-effect measurements. It is demonstrated that the kinetics can be obtained from the temperature dependence of the average isomer shift. Using this new approach, the activation energy was evaluated as equal to 109.8 kJ/mol.
- Publication:
-
Solid State Communications
- Pub Date:
- August 1999
- DOI:
- 10.1016/S0038-1098(99)00259-8
- Bibcode:
- 1999SSCom.111..613C