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arXiv · 0709.0789

Structural peculiarities of plastically-deformed cementite and their influence on magnetic characteristics and Mossbauer parameters

A. K. Arzhnikov·L. V. Dobysheva
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Abstract

Cementite Fe3C is studied with first-principles calculations. Two possible positions of carbon atoms in the iron sublattice are considered: with prismatic or octahedral environment. Mossbauer spectra (MS) with parameters calculated for both modifications are simulated above and below the Curie temperature. A possibility to detect the change in carbon position upon annealing from MS is discussed. It is shown that this is hardly possible using a standard approach to treatment of MS, but it can be seen in more subtle details of the MS below the Curie temperature, such as widths and positions of separate lines.

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A. K. Arzhnikov, L. V. Dobysheva. 2007-09-06. Structural peculiarities of plastically-deformed cementite and their influence on magnetic characteristics and Mossbauer parameters. https://doi.org/10.1016/j.ssc.2007.12.028

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