Atomistic computer simulation of alloy corrosion

R. C. Newman, Q. Song, R. A. Cottis, Karl Sieradzki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Atomistic computer simulation is concerned with the modeling of the behavior of an alloy by modeling the dissolution of individual atoms from a section of a simulated crystal. Monte Carlo techniques are used for the construction of a random array of atoms in the crystal lattice and to decide on the behavior of individual atoms. The technique has previously proved valuable in understanding several aspects of dealloying; this paper is concerned with the extension of this work to cover the active-passive transition in binary alloys such as Fe-Cr. It is found that a very simple set of rules for estimating the dissolution probability for an individual atom can give a realistic representation of the active-passive transition. These rules are based on the concept that fully developed passivity due to the chromium content of the alloy depends on the existence of continuous chains of -Cr-O-Cr- linkages at the metal surface.

Original languageEnglish (US)
Title of host publicationASTM Special Technical Publication
PublisherPubl by ASTM
Pages17-27
Number of pages11
Edition1154
StatePublished - 1992
Externally publishedYes
EventSymposium on Computer Modeling for Corrosion - San Antonio, TX, USA
Duration: Nov 12 1990Nov 13 1990

Other

OtherSymposium on Computer Modeling for Corrosion
CitySan Antonio, TX, USA
Period11/12/9011/13/90

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Newman, R. C., Song, Q., Cottis, R. A., & Sieradzki, K. (1992). Atomistic computer simulation of alloy corrosion. In ASTM Special Technical Publication (1154 ed., pp. 17-27). Publ by ASTM.