Nonequilibrium collective phenomena in the onset of pitting corrosion

SURFACE SCIENCE

卷:603

Article

Mikhailov, A. S.²  Scully, J. R.³  Hudson, J. L.¹ 

[1] Univ Virginia, Dept Chem Engn, Charlottesville, VA 22904 USA

[2] Max Planck Gesell, Fritz Haber Inst, Phys Chem Abt, D-14195 Berlin, Germany

[3] Univ Virginia, Dept Mat Sci & Engn, Charlottesville, VA 22904 USA

关键词: Metastable pitting;    Stochastic reaction-diffusion;    Corrosion;    Stainless steels;    Nonequilibrium collective phenomena;   

DOI  :  10.1016/j.susc.2008.08.045

来源: Elsevier

【 摘 要 】

Nonequilibrium collective phenomena and effects of nonlinear pattern formation play the crucial role in the onset of pitting corrosion on stainless steels. Such materials are naturally protected by the oxide layer covering their surface. The onset of pitting corrosion involves the development of microscopic metastable pits, each persisting for about a second. As proposed in our publications and confirmed in subsequent experiments, sudden transition to active corrosion results from chain reproduction of metastable pits on the stainless steel surface leading to an autocatalytic explosion. (C) 2009 Elsevier B.V. All rights reserved.

【 授权许可】

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