Grain boundary parting limit during dealloying

Kyong Wook Noh, Kaiping Tai, Shimin Mao, Shen J. Dillon

Research output: Contribution to journalArticlepeer-review


The role of chemistry in affecting dealloying along and across grain boundaries is investigated in nanocrystalline Ag-Au and Cu-Au. The microstructural evolution, through a combination of in situ and ex situ electron microscopy, is correlated with measurements of grain boundary chemistry via a statistical analysis. A critical concentration of segregated Au, 40%, inhibits grain boundary corrosion and strongly influences the microstructural evolution. (Figure Presented).

Original languageEnglish (US)
Pages (from-to)157-161
Number of pages5
JournalAdvanced Engineering Materials
Issue number2
StatePublished - Feb 1 2015
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics


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