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CsCl-type ordered structures in binary alloys of transition elements

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Abstract

X-ray diffraction results indicate that in the VFe alloy, the body-centered-cubic disordered structure can be almost completely retained by quenching from 1250°C. On annealing at 600°C, the disordered body-centered-cubic structure transforms into a CsCl-type ordered structure before practically any of the stable σ phase is formed. The increasing stability of the CsCl-type ordered structure from CrFe to VFe to TiFe indicates that the A-B bond increases in strength, as compared with the A-A and B-B bonds. This is accompanied by increasing brittleness, increasing lattice contraction, and the disappearance of ferromagnetism. It is probable that the increasingly strong A-B bond results from a quasi-ionic bond component due to electron transfer.

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References

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Author information

Authors and Affiliations

  1. Research and Development Laboratory, Crucible Steel Co. of America, Pittsburgh, P. A., USA

    T. V. Philip (Junior Member AIME, Staff Metallurgist)

  2. College of Engineering, University of Illinois, Urbana, Ill., USA

    Paul A. Beck (Member AIME, Research Professor of Physical Metallurgy)

Authors
  1. T. V. Philip
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  2. Paul A. Beck
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Additional information

TP 4509E. Manuscript, Dec. 26, 1956.

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Philip, T.V., Beck, P.A. CsCl-type ordered structures in binary alloys of transition elements. JOM 9, 1269–1271 (1957). https://doi.org/10.1007/BF03398305

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  • DOI: https://doi.org/10.1007/BF03398305

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