Acetate and chloride effects on hydrogen production across crevices

T. Sundararajan, E. Akiyama, K. Tsuzaki

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

Abstract

Crevice corrosion experiments on pure iron were earned out in a 0.5 M acetate buffer with varied chloride concentrations. Changes in resultant currents and morphology due to crevice attack were explained by IR potential drop mechanisms. The specimens experienced potential drop inside the crevice, which resulted in the formation of passive, active, and hydrogen evolution regions. The passive region did not exist in the electrolyte containing 0.05 M and 0.5 M chloride. Hydrogen evolution, which occurred inside the crevice was measured on rear side of the specimen using hydrogen permeation test. The results suggest that the hydrogen produced inside the crevice is measurable using a permeation test. The entry of diffusible hydrogen showed a significant increase with the addition of chloride into the acetate buffer.

Original languageEnglish
Title of host publicationAdvanced Structural and Functional Materials Design - Proceedings of the International Symposium on Advanced Structural and Functional Materials Design, 2004
PublisherTrans Tech Publications Ltd
Pages97-102
Number of pages6
ISBN (Print)0878499962, 9780878499960
DOIs
Publication statusPublished - 2006 Jan 1
Externally publishedYes
EventInternational Symposium on Advanced Structural and Functional Materials Design, 2004 - Osaka, Japan
Duration: 2004 Nov 102004 Nov 12

Publication series

NameMaterials Science Forum
Volume512
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Other

OtherInternational Symposium on Advanced Structural and Functional Materials Design, 2004
CountryJapan
CityOsaka
Period04/11/1004/11/12

Keywords

  • Acetate buffer
  • Chloride
  • Crevice corrosion
  • Hydrogen permeation
  • IR drop mechanism
  • Iron

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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  • Cite this

    Sundararajan, T., Akiyama, E., & Tsuzaki, K. (2006). Acetate and chloride effects on hydrogen production across crevices. In Advanced Structural and Functional Materials Design - Proceedings of the International Symposium on Advanced Structural and Functional Materials Design, 2004 (pp. 97-102). (Materials Science Forum; Vol. 512). Trans Tech Publications Ltd. https://doi.org/10.4028/0-87849-996-2.97