Mössbauer study of the process of the room-temperature aging of the alloy Cu79Ni14Fe7

Mössbauer spectroscopy was used to investigate the initial stage of the phase separation in the quasi-binary system Cu 79 Ni 14 Fe 7 and the subsequent transformation of the alloy structures as a result of prolonged aging at room temperature. For describing the Mössbauer spectra of ferromagnetic par...

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Bibliographic Details
Published inPhysics of metals and metallography Vol. 111; no. 1; pp. 38 - 44
Main Authors Pyataev, A. V., Manapov, R. A.
Format Journal Article
LanguageEnglish
Published Dordrecht SP MAIK Nauka/Interperiodica 01.01.2011
Subjects
Alloy systems
Approximation
Chemistry and Materials Science
Copper base alloys
Diffusion
Ferromagnetism
Materials Science
Mathematical analysis
Mathematical models
Metallic Materials
Mossbauer effect
Mossbauer spectroscopy
Phase Transformations
Structure
Transformations
spinodal decomposition
Mössbauer effect
alloys
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Summary:Mössbauer spectroscopy was used to investigate the initial stage of the phase separation in the quasi-binary system Cu 79 Ni 14 Fe 7 and the subsequent transformation of the alloy structures as a result of prolonged aging at room temperature. For describing the Mössbauer spectra of ferromagnetic particles, which appear upon the spinodal decomposition in a paramagnetic matrix, a model was proposed and approved, which uses particle-size distribution in the approximation of the generalized Lifshitz-Slezov-Wagner (LSW) model and of the linear decrease of the hyperfine field at the 57 Fe nuclei in the near-surface layers of spherical particles.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0031-918X
1555-6190
DOI:10.1134/S0031918X11010108