Reply to comments on the paper “In situ observations of silver-decoration evolution under hydrogen permeation: Effects of grain boundary misorientation on hydrogen flux in pure iron” by Gavriljuk and Teus

Motomichi Koyama, Daisuke Yamasaki, Kaneaki Tsuzaki

Research output: Contribution to journalLetter

2 Citations (Scopus)

Abstract

As a response to a comment by Gavriljuk and Teus, we discuss the effects of hydrogen-charging-induced crack formation and plastic deformation on a high hydrogen flux along the grain boundaries in pure iron. Because no cracks were observed in the microstructure of the pure iron specimen used in our study, the effects of crack formation could be ruled out. In contrast, dislocation localization near grain boundaries was observed, possibly due to a hydrogen concentration gradient; therefore, the presence of dislocations may assist hydrogen segregation and cause the high hydrogen flux.

Original languageEnglish
Pages (from-to)91-92
Number of pages2
JournalScripta Materialia
Volume140
DOIs
Publication statusPublished - 2017 Nov
Externally publishedYes

Keywords

  • Grain boundary
  • Hydrogen segregation
  • Local plasticity
  • Silver decoration

ASJC Scopus subject areas

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

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