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Ordering and Magnetic Heat Treatment of The 50 Pet Fe-50 Pet Co Alloy

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Abstract

The 50 pet Fe-50 pet Co alloy undergoes a transformation from disorder to an ordered structure of the CsCl type reportedly in the vicinity of 732°C. During this process, the coercive force goes through a maximum, apparently as a result of strains associated with the coherent nucleation and growth reaction. This magnetic alloy also shows a marked increase in the ratio of residual to saturation induction, which is associated with annealing to a high degree of order with the continuous application of a magnetic field. The increase in ratio can be explained on the basis of a decrease in 90° domain boundaries and, perhaps, by an increase in anisotropy resulting from lattice distortion.

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Author information

Authors and Affiliations

  1. Westinghouse Electric Corp., East Pittsburgh, Pa, USA

    R. C. Hall Junior Member AIME, associated with Materials Engineering

  2. Magnetic Materials Laboratory, Lehigh University, Bethlehem, USA

    G. P. Conard Members AIME, Assistant Professor of Metallurgy and Director & J. F. Libsch (Member AIME, Professor of Metallurgy and Director)

Authors
  1. R. C. Hall Junior Member AIME, associated with Materials Engineering
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  2. G. P. Conard Members AIME, Assistant Professor of Metallurgy and Director
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  3. J. F. Libsch
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Additional information

formerly Graduate Student, Lehigh University

Discussion of this paper, TP 4047E, may be sent, 2 copies, to AIME by Nov. 1, 1955. Manuscript, Sept. 15, 1954. Chicago Meeting, February 1955.

This paper is based on a portion of a thesis by R. C. Hall submitted, in partial fulfillment of the requirements for the degree of Doctor of Philosophy, to the Graduate Faculty, Lehigh University.

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Hall, R.C., Conard, G.P. & Libsch, J.F. Ordering and Magnetic Heat Treatment of The 50 Pet Fe-50 Pet Co Alloy. JOM 7, 985–989 (1955). https://doi.org/10.1007/BF03377596

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