Local structure of high-coercivity Fe-Ni-Al alloys

Results of hard magnetic Fe-Ni-Al alloys after various thermal processing local structure researches by method of EXAFS-spectroscopy with use of synchrotron radiation at temperature 77 K are presented. It is established, that during cooling a firm solution with critical speed reorganization of a loc...

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Bibliographic Details
Published in:Journal of physics. Conference series 2011-04, Vol.291 (1), p.012021-4
Main Authors: Menushenkov, A P, Menushenkov, V P, Chernikov, R V, Sviridova, T A, Grishina, O V, Sidorov, V V
Format: Article
Language:English
Subjects:
Alloys
Aluminum
Coercivity
Cooling rate
Iron
Nickel
Nickel base alloys
Physics
Restoration
Stratification
Synchrotron radiation
Synchrotrons
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Summary:Results of hard magnetic Fe-Ni-Al alloys after various thermal processing local structure researches by method of EXAFS-spectroscopy with use of synchrotron radiation at temperature 77 K are presented. It is established, that during cooling a firm solution with critical speed reorganization of a local environment of nickel relative to quickly tempered sample owing to stratification of a firm solution is observed. The subsequent aging at 780°C practically restores local structure, characteristic for quickly tempered sample, keeping thus rather high coercitive force.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/291/1/012021