Advanced search
1 file | 2.05 MB

The hydrogen induced mechanical degradation of duplex stainless steel

Author
Organization
Abstract
This study considers the interaction between duplex stainless steel type 2205 and electrochemically charged hydrogen. Duplex stainless steels combine the mechanical properties of ferrite with the corrosion resistance of austenite and are widely used in many industrial applications. However, they are susceptible to hydrogen embrittlement. In this work, the steel microstructure is first characterized by scanning and transmission electron microscopy, X-ray diffraction, and electron backscatter diffraction. Subsequently, melt extraction is done to determine the amount of hydrogen charged into the material, while in situ hydrogen charged tensile tests are combined with a fractography analysis to evaluate the effect of hydrogen on the mechanical behavior. The material displays a rather significant ductility loss of about 26% as a result of the applied hydrogen charging. Melt extraction identifies the increased hydrogen content in the steel microstructure (up to 50 wppm). Moreover, the hydrogen embrittled regions correspond well to the hydrogen diffusion penetration depth from the edges onwards. These cleavage brittle areas are observed up to the theoretical hydrogen diffusion distance, demonstrating the hydrogen embrittlement effect.
Keywords
duplex stainless steel, hydrogen diffusivity, hydrogen embrittlement, SEM, TEM, EMBRITTLEMENT, MICROSTRUCTURE, DEFORMATION, DIFFUSION, EVOLUTION, STRENGTH, TEXTURE

Downloads

  • (...).pdf
    • full text
    • |
    • UGent only
    • |
    • PDF
    • |
    • 2.05 MB

Citation

Please use this url to cite or link to this publication:

Chicago
Maria, Graziele Gianini Braga, Lisa Claeys, Tom Depover, Dagoberto Brandão Santos, and Kim Verbeken. 2019. “The Hydrogen Induced Mechanical Degradation of Duplex Stainless Steel.” Steel Research International 90 (1).
APA
Maria, G. G. B., Claeys, L., Depover, T., Santos, D. B., & Verbeken, K. (2019). The hydrogen induced mechanical degradation of duplex stainless steel. STEEL RESEARCH INTERNATIONAL, 90(1).
Vancouver
1.
Maria GGB, Claeys L, Depover T, Santos DB, Verbeken K. The hydrogen induced mechanical degradation of duplex stainless steel. STEEL RESEARCH INTERNATIONAL. 2019;90(1).
MLA
Maria, Graziele Gianini Braga, Lisa Claeys, Tom Depover, et al. “The Hydrogen Induced Mechanical Degradation of Duplex Stainless Steel.” STEEL RESEARCH INTERNATIONAL 90.1 (2019): n. pag. Print.
@article{8579451,
  abstract     = {This study considers the interaction between duplex stainless steel type 2205 and electrochemically charged hydrogen. Duplex stainless steels combine the mechanical properties of ferrite with the corrosion resistance of austenite and are widely used in many industrial applications. However, they are susceptible to hydrogen embrittlement. In this work, the steel microstructure is first characterized by scanning and transmission electron microscopy, X-ray diffraction, and electron backscatter diffraction. Subsequently, melt extraction is done to determine the amount of hydrogen charged into the material, while in situ hydrogen charged tensile tests are combined with a fractography analysis to evaluate the effect of hydrogen on the mechanical behavior. The material displays a rather significant ductility loss of about 26\% as a result of the applied hydrogen charging. Melt extraction identifies the increased hydrogen content in the steel microstructure (up to 50 wppm). Moreover, the hydrogen embrittled regions correspond well to the hydrogen diffusion penetration depth from the edges onwards. These cleavage brittle areas are observed up to the theoretical hydrogen diffusion distance, demonstrating the hydrogen embrittlement effect.},
  articleno    = {1800451},
  author       = {Maria, Graziele Gianini Braga and Claeys, Lisa and Depover, Tom and Santos, Dagoberto Brand{\~a}o and Verbeken, Kim},
  issn         = {1611-3683},
  journal      = {STEEL RESEARCH INTERNATIONAL},
  language     = {eng},
  number       = {1},
  pages        = {6},
  title        = {The hydrogen induced mechanical degradation of duplex stainless steel},
  url          = {http://dx.doi.org/10.1002/srin.201800451},
  volume       = {90},
  year         = {2019},
}

Altmetric
View in Altmetric
Web of Science
Times cited: