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Annealing behaviour of amorphous μ- phase alloys of FeW and MoCo

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Abstract

Crystallization in sputter deposited, amorphous FeW and MoCo of μ-phase composition alloys has been studied using transmission electron microscopy (TEM), electrical resistivity and X-ray diffraction. The amorphous alloys exhibit high thermal stability and transform directly to the equilibrium μ-phase with no intermediate metastable phase formation. In FeW, a tungsten-iron solid solution also forms as the alloy composition is actually in a two-phase (μ + solid solution) region. In both alloys, the crystallites form on a very fine scale and the μ-phase is heavily faulted. The crystallization behaviour may be indicative of a marked similarity between the short range structure of the amorphous phase and the μ-phase structure. Changes in electrical resistivity during crystallization are in substantial agreement with the structural changes observed through TEM and X-ray analysis.

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Authors and Affiliations

  1. Pacific Northwest Laboratories, Battelle, 99352, Richland, Washington, USA

    J. L. Brimhall, R. Wang & H. E. Kissinger

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  1. J. L. Brimhall
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  2. R. Wang
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  3. H. E. Kissinger
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Brimhall, J.L., Wang, R. & Kissinger, H.E. Annealing behaviour of amorphous μ- phase alloys of FeW and MoCo. J Mater Sci 15, 2605–2611 (1980). https://doi.org/10.1007/BF00550766

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  • DOI: https://doi.org/10.1007/BF00550766

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