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Rapidly solidified microstructure of AI-8Fe-4 lanthanide alloys

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Abstract

AI-817e and AI-8Fe-4RE (cerium, erbium, neodymium and gadolinium) alloys were rapidly solidified by the melt-spinning technique. The microstructure and phases of alloy ribbons were studied using optical metallography, SEM, TEM and X-ray diffraction techniques. The study has indicated that Re additions to AI-8Fe: (1) result in formation of an increased amount of fine microstructure region, (2) increase the hardness and stability, and (3) generally suppress the formation of needle-type Al3Fe compounds by substituting them with globular Al3Fe2RE compounds. The addition of gadolinium appears to produce the best results.

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Authors and Affiliations

  1. Materials Laboratory, AFWAL/MLLS, Air Force Wright Aeronautical Laboratories, USA

    Y. R. Mahajan & F. H. Froes

  2. Metcut-Materials Research Group, P.O. Box 33511, 45433, Wright- Patterson Air Force Base, Ohio, USA

    Young-Won Kim

Authors
  1. Y. R. Mahajan
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  2. Young-Won Kim
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  3. F. H. Froes
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Mahajan, Y.R., Kim, YW. & Froes, F.H. Rapidly solidified microstructure of AI-8Fe-4 lanthanide alloys. J Mater Sci 22, 202–206 (1987). https://doi.org/10.1007/BF01160572

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  • DOI: https://doi.org/10.1007/BF01160572

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