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Published November 15, 1994 | Published
Journal Article Open

Phases and phase stabilities of Fe3X alloys (X=Al, As, Ge, In, Sb, Si, Sn, Zn) prepared by mechanical alloying


Mechanical alloying with a Spex 8000 mixer/mill was used to prepare several alloys of the Fe3X composition, where the solutes X were from groups IIB, IIIB, IVB, and VB of the periodic table. Using x-ray diffractometry and Mössbauer spectrometry, we determined the steady-state phases after milling for long times. The tendencies of the alloys to form the bcc phase after milling are predicted well with the modified usage of a Darken–Gurry plot of electronegativity versus metallic radius. Thermal stabilities of some of these phases were studied. In the cases of Fe3Ge and Fe3Sn, there was the formation of transient D03 and B2 order during annealing, although this ordered structure was replaced by equilibrium phases upon further annealing.

Additional Information

© 1994 American Institute of Physics (Received 6 June 1994; accepted 1 August 1994) We acknowledge stimulating conversations with L. Anthony. This work was supported by the U. S. Department of Energy under Contract No. DE-FG03-86ER45270.

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August 22, 2023
August 22, 2023