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Metals 2015, 5(2), 1020-1028; doi:10.3390/met5021020

Structure and Mössbauer Analysis of Melt-Spun Fe-Pd Ribbons Containing Ni and Co

1
Laboratory of Inorganic Chemistry, UR 11ES73, University of Sfax, B.P.1171, Sfax 3000, Tunisia
2
Department of Physics, University of Girona, Campus Montilivi s/n, Girona 17071, Spain
3
Department of Applied Physics, University of Catalonia, Barcelona. Tech, Esteve Terradas 5, Castelldefels 08860, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Kurt R. Ziebeck
Received: 15 April 2015 / Accepted: 25 May 2015 / Published: 5 June 2015
(This article belongs to the Special Issue Shape Memory Alloys 2014)
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Abstract

Fe68.45Pd28.21Co1.66Ni1.66 alloy in ribbon geometry was produced by melt spinning. The microstructure of the samples was examined using scanning electron microscopy. The structural identification of the as-spun ribbon sample and the annealed ones was performed by means of X-ray diffraction. All the Bragg peaks were indexed based on an fcc type structure of (γ-Fe, Pd) phase with a lattice parameter a = 3.742 (3) Å. This result was proved by Mössbauer technique. The annealed ribbon at 600 °C shows an L10 ordered fct structure. An endothermic reaction at T = 358 °C followed by an exothermic one at 390 °C were observed on heating. These reactions were attributed to the Curie temperature of nickel and to the annihilation of an excess of quenched-in vacancies, respectively. View Full-Text
Keywords: shape memory alloys; structural; microstructure; Mössbauer shape memory alloys; structural; microstructure; Mössbauer
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Rekik, H.; Chemingui, M.; Bachaga, T.; Cherif, A.; Bruna, P.; Sunol, J.J.; Khitouni, M. Structure and Mössbauer Analysis of Melt-Spun Fe-Pd Ribbons Containing Ni and Co. Metals 2015, 5, 1020-1028.

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