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Materials Science

, Volume 42, Issue 5, pp 644–648 | Cite as

Structure of an alloy based on SmCo5 after disproportionation-recombination

  • I. I. Bulyk
  • A. M. Trostyanchyn
Article

Abstract

By using the X-ray phase diffraction, metallographic, and micro-X-ray spectral analyses, we study the procedure of solid hydrogenation, disproportionation, desorption, and recombination in KS37 alloy formed by the SmCo5 and SmCo3 phases for \(P_{H_2 } \) ≈ 4 MPa at 1158°K. The alloy disproportionates in hydrogen into a mixture of samarium hydride and cobalt with grain sizes ≤ 1 µm. The process of recombination ends by the restoration of the original phases accompanied by the formation of a fine-grained structure of the SmCo3 phase. As a result, the amount of this phase decreases. The procedure of holding of the alloy for 55 min in the course of recombination leads to the formation of a structure with elongated grains.

Keywords

Disproportionation Samarium Solid Hydrogenation Karpenko Physicomechanical Institute Original Alloy 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media, Inc. 2006

Authors and Affiliations

  • I. I. Bulyk
    • 1
  • A. M. Trostyanchyn
    • 1
  1. 1.Karpenko Physicomechanical InstituteUkrainian Academy of SciencesLviv

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