| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1621869 | Journal of Alloys and Compounds | 2009 | 6 Pages |
Abstract
An evaluation of enthalpy change of the hcp/fcc transformation in Fe-Mn and Fe-Mn-Si alloys, in the composition ranges from 0 to 12Â at.% and from 17 to 32Â at.% of Si and Mn, respectively, is performed. The calculation is based on a phenomenological description of the energy of Gibbs of the fcc- and hcp-phases and on the Redlich-Kister model. This result is compared with a systematic determination of the enthalpy change of transformation obtained by combining Differential Scanning Calorimetry experiments and the hcp-phase relative fractions extracted from Mössbauer spectroscopy, dilatometry and neutron diffraction measurements. The present calculation reproduces well the experimental data, reinforcing the validity of the previous thermodynamic description of the Gibbs energy of hcp- and fcc-phases.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
J. MartÃnez, S.M. Cotes, J. Desimoni,