Electrochemical hydrogen permeation tests under conventional potentiostatic hydrogen charging conditions for hydrogen embrittlement study

E. Akiyama, S. Li

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

3 Citations (Scopus)

Abstract

Electrochemical hydrogen permeation tests were carried out under potentiostatic hydrogen charging conditions in various solutions, and the hydrogen entry behavior was compared with that of galvanostatic method. The relationship between hydrogen permeation current density and potential was similar in potentiostatic and galvanostatic methods and wide range of hydrogen concentration could be covered as well as galvanostatic method by varying NH4SCN content and potential. However, slight differences in hydrogen permeation current density and efficiency of hydrogen entry were seen between the methods, and the stability of hydrogen entry of potentiostatic method was slightly higher than that of galvanostatic method. In both methods, hydrogen permeation current density tended to increase with time in a NH4SCN containing solution suggesting that it is recommended to measure resulted hydrogen content by means of thermal desorption analysis for accuracy, though the relationship between hydrogen permeation current density and potential can be used as a rough standard.

Original languageEnglish
Title of host publicationAtmospheric -and- Marine Corrosion
EditorsI. Cole, C. Leygraf, R. Srinivasan, H. Katayama, A. Nishikata, E. Tada, M. Sakairi, M. Itagaki
PublisherElectrochemical Society Inc.
Pages23-31
Number of pages9
Edition29
ISBN (Electronic)9781607685395
DOIs
Publication statusPublished - 2016 Jan 1
EventSymposium on Atmospheric -and- Marine Corrosion - PRiME 2016/230th ECS Meeting - Honolulu, United States
Duration: 2016 Oct 22016 Oct 7

Publication series

NameECS Transactions
Number29
Volume75
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862

Other

OtherSymposium on Atmospheric -and- Marine Corrosion - PRiME 2016/230th ECS Meeting
CountryUnited States
CityHonolulu
Period16/10/216/10/7

ASJC Scopus subject areas

  • Engineering(all)

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