In situ synchrotron X-ray radiation analysis of hydrogen behavior in stainless steel subjected to continuous heating

E. Dabah, Th Kannengiesser, D. Eliezer, Th Boellinghaus

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Hydrogen generally causes lattice distortions and phase transformations when introduced into a metallic crystal lattice. For the investigations reported in this contribution, hydrogen thermal desorption analysis has been carried out to observe the influence of hydrogen desorption on the lattice of super martensitic stainless steel during continuous heating. The lattice expansion parameter and the phase transformations have been monitored during the thermal desorption process, and the influence of hydrogen on such characteristics has been evaluated. It was found that hydrogen has a significant influence on both the lattice parameter and on the thermal expansion. However, hydrogen has no influence on phase transformation during thermal desorption. The hydrogen's desorption behavior in this process was also observed and it turned out that hydrogen desorbs in two stages, i.e., firstly diffusible hydrogen and trapped hydrogen afterward.

Original languageEnglish
Pages (from-to)5879-5885
Number of pages7
JournalJournal of Materials Science
Volume47
Issue number15
DOIs
StatePublished - 1 Aug 2012

ASJC Scopus subject areas

  • Materials Science (all)
  • Mechanics of Materials
  • Mechanical Engineering

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