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Journal of Materials Science

, Volume 27, Issue 1, pp 270–278 | Cite as

Ordering and structural transformations in Ni3Al alloys

  • R. Ramesh
  • R. Vasudevan
  • B. Pathiraj
  • B. H. Kolster
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  • 59 Downloads

Abstract

X-ray diffraction profile studies on the filings of stoichiometric and off-stoichiometric compositions of Ni3Al alloys, with and without boron additions, were conducted to clarify some of the significant anomalies noticed in the literature. The long-range order parameter was estimated as a function of temperature in all the four alloys from (1 0 0)/(2 0 0) and (1 1 0)/(2 2 0) pairs of reflections. The L12 structure appears to attain a maximum stability at about 600 °C, around which temperature its order parameter was close to the theoretical value. Above 600 °C, this structure becomes less stable and there appears to be formation of an additional structure of a lower symmetry.

Keywords

Polymer Reflection Boron Ni3Al Structural Transformation 
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

© Chapman & Hall 1992

Authors and Affiliations

  • R. Ramesh
    • 1
  • R. Vasudevan
    • 1
  • B. Pathiraj
    • 1
  • B. H. Kolster
    • 1
  1. 1.Foundation for Advanced Metals Science (SGM)KA HengeloThe Netherlands

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