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Intergranular brittleness studies in Tungsten Using Auger Spectroscopy

  • Mechanical Behavior
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Abstract

The present investigation was aimed at understanding the problem of brittleness in powder metallurgy tungsten by utilizing Auger Electron Emission Spectroscopy as a tool for direct chemical analysis of fracture surfaces. Substantial segregation of phosphorus to the grain boundaries was observed in tungsten and the concentration of phosphorus can be related to the ductile-brittle transition temperatures. The amount of segregation was dependent upon the grain size—the larger the grain size, the greater the concentration of phosphorus at the grain boundary and the associated embrittlement.

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Authors and Affiliations

  1. Department of Chemical Engineering and Materials Science, University of Minnesota, Minnesota, Minneapolis, Minn.

    A. Joshi

  2. Department of Mechanical Engineering, University of Minnesota, Minnesota, USA

    D. F. Stein

Authors
  1. A. Joshi
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  2. D. F. Stein
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Joshi, A., Stein, D.F. Intergranular brittleness studies in Tungsten Using Auger Spectroscopy. Metall Trans 1, 2543–2546 (1970). https://doi.org/10.1007/BF03038381

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  • DOI: https://doi.org/10.1007/BF03038381

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