Alloy corrosion

R. C. Newman, S. G. Corcoran, J. Erlebacher, M. J. Aziz, Karl Sieradzki

Research output: Contribution to journalArticlepeer-review

122 Scopus citations

Abstract

Alloy corrosion is a field of scientific study that combines electrochemical kinetics with aspects of the morphological evolution of surfaces. The basic alloy corrosion process is de-alloying, where a significant difference in the equilibrium metal/metal-ion electrode potentials for two metals occurs. In alloy systems where the ambient temperature corresponds to a small fraction of the homologous melting temperature, site-percolation thresholds set a lower bound on the parting limit. The parting limit represents the critical content of reactive alloy components that is required to allow de-alloying at an arbitrarily high anodic potential. Another field of alloy corrosion is passivation, where sharp compositional threshold behavior is observed.

Original languageEnglish (US)
Pages (from-to)24-28
Number of pages5
JournalMRS Bulletin
Volume24
Issue number7
DOIs
StatePublished - Jul 1999

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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