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  1. 2 Nukleonika

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  1. 2 2015

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  1. 2 Chojcan J.

  2. 2 Idczak R.

  3. 2 Konieczny R.

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Mean hyperfine fields at57Fe in dilute iron-based alloys studied by Mössbauer spectroscopy

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Idczak R., Konieczny R., Chojcan J.
Nukleonika
|
2015
|
vol. 60
|
issue 1
39-42
EN
The room temperature Mössbauer spectra of 57Fe were measured for numerous dilute iron-based alloys Fe1−xDx (D = Al, Co, Cr, Mn, Mo, Ni, Os, Pt, Re, Ru, Ta, Ti, V, W, Zn), annealed at 1270 K for 2 h before the measurements. The spectra were analyzed using the Hesse–Rübartsch method in order to determine the mean hyperfine magnetic field at the 57Fe nuclei as a function of concentration x of the minority component of the alloy. As the binary alloys are one-faze solid solutions of an element D in iron, a linear relationship between and x is observed. The result supports the suggestion that Mössbauer spectroscopy is a useful tool for the study of dissolution of different elements in iron.
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Interactions between osmium atoms dissolved in iron observed by the57Fe Mössbauer spectroscopy

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Konieczny R., Idczak R., Chojcan J.
Nukleonika
|
2015
|
vol. 60
|
issue 1
75-79
EN
The room temperature 57Fe Mössbauer spectra for binary iron-based solid solutions Fe1−xOsx, with x in the range 0.01 ≤ x ≤ 0.05, were analyzed in terms of binding energy Eb between two Os atoms in the Fe-Os system. The extrapolated values of Eb for x = 0 were used for computation of enthalpy of solution of osmium in iron. The result was compared with that resulting from the cellular atomic model of alloys by Miedema. The comparison shows that our findings are in qualitative agreement with the Miedema's model predictions.
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