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Edvin Lundgren. Portrait.

Edvin Lundgren

Professor

Edvin Lundgren. Portrait.

Time-resolved grazing-incidence X-ray diffraction measurement to understand the effect of hydrogen on surface strain development in super duplex stainless steel

Author

  • Cem Örnek
  • Alfred Larsson
  • Gary S. Harlow
  • Fan Zhang
  • Robin Kroll
  • Franceso Carlà
  • Hadeel Hussain
  • Ulf Kivisäkk
  • Dirk L. Engelberg
  • Edvin Lundgren
  • Jinshan Pan
Show all

Summary, in English

Grazing-incidence x-ray diffraction was employed to measure, operando, during electrochemical hydrogen charging, the lattice strain development of the near-surface in super duplex stainless steel under applied tensile load. Hydrogen absorption led to the formation of tensile strains in both the austenite (γ) and ferrite (δ) phases perpendicular to the loading axis, whereas compressive strains were formed in the ferrite phase parallel to the loading direction, despite the acting tensile load. The earliest stages of degradation are discussed in light of understanding hydrogen embrittlement.

Department/s

  • Synchrotron Radiation Research
  • NanoLund: Centre for Nanoscience

Publishing year

2020

Language

English

Pages

63-67

Publication/Series

Scripta Materialia

Volume

187

Document type

Journal article

Publisher

Elsevier

Topic

  • Metallurgy and Metallic Materials

Keywords

  • Dual phases
  • Hydrogen embrittlement
  • Stainless steels
  • Synchrotron radiation
  • X-ray diffraction (XRD)

Status

Published

ISBN/ISSN/Other

  • ISSN: 1359-6462