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Structure and Microstructure Properties of Ball Milled Fe-Zn

By R. Bensalem, O. Guergueb, S. Alleg, A. Younes, S. Souilah, M. Bououdina and J.J. Sunol


Nanocrystalline Fe10 %Zn and Fe30 %Zn alloys have been prepared from pure elemental powders by\ud mechanical alloying processing in a high energy planetary ball-mill. Microstructural, structural, and magnetic\ud characterizations of the powders were investigated by X-ray diffraction, and vibrating sample magnometer.\ud The crystallite size reduction to the nanometer scale is accompanied by an increase in the atomic\ud level strain. The reaction between Fe and Zn leads to the formation of a bcc Fe(Zn) solid solution with a\ud lattice parameter close to (0.2912 nm for Fe30 %Zn and 0,2885 nm for Fe10 %Zn) after 5 h of milling. The\ud complete dissolution of the elemental Zn powders in the a-Fe lattice gives rise to the formation of a highly\ud disordered Fe(Zn) solid solution, where a-Fe(Zn) nanograins have a crystallite size of (229,29 Å for\ud Fe10 %Zn (24 h) 30,09 Å for Fe30 %Zn (24 h), on prolonged milling time. The coercivity and magnetization\ud values are 18,90 (Fe10 %Zn)Oe and 26,59 (Fe30 %Zn) emu/g, respectively, after 24 h of milling. When you are citing the document, use the following link

Topics: Nanocrystalline alloys, Mechanical alloying, X-ray diffraction, Scanning electron microscopy, Vibrating sample magnemeter
Publisher: Sumy State University
Year: 2013
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