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article
Mössbauer study of Fe-Co alloys with Cr additions synthesized by mechanical alloying
Abstract
<p>Cr has been added to FeCo substituting 10 at.% of Co or Fe in the alloy. The alloys Fe<sub>50</sub>Co<sub>40</sub>Cr<sub>10</sub>, Fe<sub>40</sub>Co<sub>50</sub>Cr<sub>10</sub> and Fe<sub>50</sub>Co<sub>50</sub> were prepared by mechanical alloying for 2, 5, 10, 20, 40 and 60 h. The formation of the alloy and the incorporation of the elements have been followed by X-Ray Diffraction (XRD) and Mössbauer Spectroscopy. The kinetics of mixing occurs by incorporation of Co and Cr into the Fe structure. After prolonged milling it seems that Cr incorporates itself into both α-Fe and α-FeCo structures and a mixture of FeCoCr rich in Cr and FeCoCr rich in Co solid solutions is obtained. © Springer Science + Business Media B.V. 2009.</p>