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An investigation of the influence of cold-rolling on the structure factor of a metallic glass

Abstract

The effects of cold-rolling on the atomic structure of a Fe40Ni40P14B6 commercial metallic glass (Metglas 2826) have been investigated by X-ray and neutron diffraction. The cold-rolling is seen to produce significant changes in the structure factorS(Q) of this glass, and the changes observed are the reverse of those caused by low temperature annealing. The structure factor of the rolled specimen has also been simulated numerically. This shows that the changes in structure factor observed are consistent with a heterogeneous deformation, in which approximately 10% of the sample volume appears to have an atomic arrangement which is less well ordered than in the as-received glass. The deformation produced by rolling has finally been removed by a heat treatment whose parameters were determined with reference to a current model of structural relaxation.

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Guoan, W., Cowlam, N. & Gibbs, M.R.J. An investigation of the influence of cold-rolling on the structure factor of a metallic glass. J Mater Sci 19, 1374–1384 (1984). https://doi.org/10.1007/BF01120050

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Keywords

  • Polymer
  • Heat Treatment
  • Structure Factor
  • Sample Volume
  • Current Model