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Type Booth-Morrison, Christopher; Noebe, Ronald D.; Seidman, David N.
  Publication Effects of a tantalum addition on the morphological and compositional evolution of a model Ni-Al-Cr superalloy Volume Journal Article
Pages 2008
  Abstract Proceedings of the 11th International Symposium on Superalloys  
  Corporate Author Proceedings of the 11th International Symposium on Su  
  Summary Language 73-79 Series Editor  
Abbreviated Series Title The effects of a 2.0 at.% addition of Ta to a model Ni-Al-Cr superalloy aged at 1073 K are assessed using scanning electron microscopy and atom-probe tomography. The addition of Ta results in appreciable strengthening, and the morphology is found to evolve from a bimodal distribution of spheroidal precipitates, to cuboidal precipitates aligned along the elastically soft <001>-type directions. Tantalum is observed to partition preferentially to the &#947;-precipitate phase and decreases the mobility of Ni in the &#947;-matrix sufficiently to cause an accumulation of Ni on the &#947;-matrix side of the &#947;-precipitate/&#947;-matrix heterophase interface.
  Series Issue ISSN  
  Expedition The Minerals, Metals and Materials Society (TMS) Notes Warrendale, PA  
Call Number Reed, R.C.; Green, K.A.; Caron, P.; Gabb, T.P.; Fahrmann, M.G.; Huron, E.S.; Woodard, S.A.  
Contribution Id  
Serial URL ISBN  
no NU @ c-booth @ 10481
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