Hydrogen embrittlement of high strength steel under in situ corrosive charging conditions and tensile load

Research output: Contribution to journalArticleResearchpeer-review

Authors

  • Roland Scharf
  • A. Muhr
  • Karl-Heinz Stellnberger
  • Josef Faderl

External Organisational units

  • voestalpine Stahl Linz GmbH
  • CEST Kompetenzzentrum für elektrochemische Oberflächentechnologie GmbH

Abstract

It is known that advanced and ultra-high strength steel grades (AHSS and UHSS) are susceptible to hydrogen embrittlement under certain test conditions [1, 2]. In this study, punched hole specimens for constant load testing with in situ hydrogen charging were used to quantify the effect of different corrosive conditions. Flowing or stagnant electrolyte (5% NaCl) conditions were established and time to failure was recorded as a function of applied tensile stress. The pH of the solution was set at 2, 7, and 12. Bare and zinc-galvanized (EG) specimens were used. Hydrogen uptake as a function of immersion time was characterized.

Details

Original languageEnglish
Pages (from-to)95-104
Number of pages10
JournalMaterials and Corrosion
Volume68.2017
Issue number1
DOIs
Publication statusPublished - 21 Jun 2016