Atomic-scale observations of two-dimensional Re segregation at an internal interface in W(Re)

J. G. Hu*, D. N. Seidman

*Corresponding author for this work

Research output: Contribution to journalArticle

34 Scopus citations

Abstract

Equilibrium Re segregation is studied at a grain boundary in a single-phase We25-at. %-Re alloy employing atom-probe field-ion microscopy. The grain-boundary concentration is measured, without data deconvolution, to be 73.8+5.45 at. % Re at an interface plane. This is the first direct proof that segregation at a grain boundary can be purely two dimensional, and that it can occur at a so-called low-energy interface.

Original languageEnglish (US)
Pages (from-to)1615-1618
Number of pages4
JournalPhysical review letters
Volume65
Issue number13
DOIs
StatePublished - Jan 1 1990

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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