Correlation between grain orientation and surface dissolution of niobium

Wei Wang, Akram Alfantazi

Research output: Contribution to journalLetterpeer-review

23 Scopus citations

Abstract

The crystallographic orientation has a significant effect on the corrosion behavior of metals. In this work, the influence of crystallographic orientation on the surface dissolution rate of Nb was studied and the corresponding mechanism was discussed. The results show that the (1 0 0) plane exhibits a significantly lower dissolution rate compared with the (1 1 0) and (1 1 1) planes. The voltammetry results show that the (1 0 0) plane has a low oxidation peak current density compared with the (1 1 0) and (1 1 1) planes. The low corrosion rate of the (1 0 0) plane might be associated with a combination of low surface energy and a short distance to the next atom layer.

Original languageBritish English
Pages (from-to)223-226
Number of pages4
JournalApplied Surface Science
Volume335
DOIs
StatePublished - 30 Apr 2015

Keywords

  • Corrosion
  • Crystallographic orientation
  • EBSD
  • Niobium

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