Metallurgical and Materials Transactions A

, Volume 39, Issue 12, pp 2799–2803 | Cite as

Analytical Electron Microscopy Study of Boron-Rich Grain Boundary Microconstituent in Directionally Solidified RENE 80 Superalloy

  • O.A. OjoEmail author
  • H.R. Zhang


Analytical transmission electron microscopy study of intergranular regions in directionally solidified (DS) RENE 80 superalloy was performed. In addition to the generally reported M3B2-type boride particles that form in the alloy during ingot solidification, considerable presence of a different type of boride particles, M5B3, which has not been generally reported in the alloy, was observed. Extensive formation of these particles along the grain boundaries in the DS alloy is pertinent to high-temperature performance of the material.


Boride Boron Atom Electron Energy Loss Spectroscopy Directionally Solidify Electron Diffraction Analysis 
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.


The authors thank NSERC of Canada for financial support.


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Copyright information

© The Minerals, Metals & Materials Society and ASM International 2008

Authors and Affiliations

  1. 1.Department of Mechanical and Manufacturing EngineeringUniversity of ManitobaWinnipegCanada

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