Synergetic effect of Re and Ru on γ/γ' interface strengthening of Ni-base single crystal superalloys

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DOIResolve DOI: http://doi.org/10.1016/S0921-5093(03)00464-7
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TypeArticle
Journal titleMaterials Science and Engineering A
Volume360
Issue1-2
Pages197201; # of pages: 5
SubjectFirst principles calculations; Interface; Strengthening; Superalloys; Synergetic
AbstractThe synergetic effect of Re and Ru on γ/γ′ interface strengthening of Ni-base SC superalloys has been investigated by performing DMol3 calculations. Results show that the synergetic effect of Re and Ru on the interface strengthening is better than that achieved by the individual Re or Ru due to Re-d/Ru-d, Re-d/Ni-d and Ru-d/Ni-d hybridizations. The electronic mechanism underlying the synergetic effect of Re and Ru on γ/γ′ interface strengthening is related to the charge transfer of electrons and the enhancement of d-bonding hybridization among Re—Ru, Re—Ni and Ru—Ni atoms.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Institute for Aerospace Research; NRC Steacie Institute for Molecular Sciences
Peer reviewedNo
NPARC number12333610
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Record identifiera5167f7c-cdbe-43d3-a0f4-4853389fe173
Record created2009-09-10
Record modified2016-05-09
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