Effect of Li, He and Ca on grain boundary cohesive strength in Ni

Richard W. Smith, W. T. Geng, Clint B. Geller, R. Wu, Arthur J Freeman

Research output: Contribution to journalArticle

33 Citations (Scopus)


Computational results are presented indicating that atom for atom, lithium is four times and helium is eight times more embrittling in a nickel GB than hydrogen. The results also imply that both species must be considered when attempting to determine conditions under which embrittlement would be expected and that models describing the transport of both species in and around the grain boundaries are needed.

Original languageEnglish
Pages (from-to)957-961
Number of pages5
JournalScripta Materialia
Issue number10
Publication statusPublished - Oct 30 2000


ASJC Scopus subject areas

  • Materials Science(all)
  • Electronic, Optical and Magnetic Materials
  • Metals and Alloys

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