Abstract
The room temperature Mössbauer spectra of 57Fe were measured for iron-based solid solutions Fe1 − x Mo x with x in the range 0.01 ≤ x ≤ 0.05. The obtained data were analysed in terms of the binding energy E b between two molybdenum atoms in the studied materials using the extended Hrynkiewicz–Królas idea. It was found that the energy is positive or Mo atoms interact repulsively. The extrapolated value of E b for x = 0 was used for computation of the dilute-limit heat of solution of Mo in Fe. The obtain result was compared with both, the corresponding values given in the literature which were calculated theoretically on the basis of the simple embedded-atom model, as well as with the value resulting from the cellular atomic model of alloys by Miedema. The comparison shows that our findings are in a qualitative agreement with the Miedema’s model predictions and they are at variance with the theoretical computations mentioned above.
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Chojcan, J., Konieczny, R., Ostrasz, A. et al. A dilute-limit heat of solution of molybdenum in iron studied with 57Fe Mössbauer spectroscopy. Hyperfine Interact 196, 377–383 (2010). https://doi.org/10.1007/s10751-010-0173-8
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DOI: https://doi.org/10.1007/s10751-010-0173-8