Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Influence of Fabrication Route and Copper Content on Nature and Kinetics of 475 °C- Embrittlement in Cu-Containing Super Duplex Stainless Steels
University West, Department of Engineering Science, Division of Welding Technology. ESAB AB, Göteborg (SWE). (KAMPT)ORCID iD: 0000-0001-6242-3517
Department of Physics Chalmers University of Technology, Göteborg (SWE).
Department of Physics Chalmers University of Technology, Göteborg (SWE).
Outokumpu Stainless AB, Avesta (SWE).
Show others and affiliations
2023 (English)In: Steel Research International, ISSN 1611-3683, E-ISSN 1869-344X, Vol. 4, p. 1-12, article id 2200978Article in journal (Refereed) Published
Abstract [en]

The influence of hot-rolling, hot isostatic pressing (HIP), welding, as well as copper content on 475 °C-embrittlement is studied in super duplex stainless steels. The as-received samples are solution annealed and quenched. Then, to study the kinetics and nature of phase transformations during fabrication, the samples are aged for a very short duration of 5 min at 475 °C. Atom probe tomography results reveal that the processes involving more plastic deformation such as hot rolling and HIP accelerate chromium and iron phase separation and cause precipitation of copper-rich particles (CRPs) in ferrite, resulting in significant toughness loss. In contrast, the weld does not show a high level of chromium and iron phase separation or CRPs precipitation, preserving its toughness after the short aging. The experiment and the inverse interdiffusion calculations reveal that raising the copper content slow down chromium and iron phase separation but significantly increase the CRP number density and decrease the toughness of the HIPed material. Precipitation simulation of CPRs show that the model must be modified based on each processing condition. It is concluded that hot rolling and HIP accelerate 475 °C-embrittlement, which cannot be prevented by raising the copper content.

Place, publisher, year, edition, pages
2023. Vol. 4, p. 1-12, article id 2200978
Keywords [en]
Cu-rich particle precipitation, Fe and Cr phase separation, simulations, super duplex stainless steels, 475 °C- embrittlement
National Category
Manufacturing, Surface and Joining Technology
Research subject
Production Technology
Identifiers
URN: urn:nbn:se:hv:diva-20888DOI: 10.1002/srin.202200978ISI: 001069592700001Scopus ID: 2-s2.0-85171449212OAI: oai:DiVA.org:hv-20888DiVA, id: diva2:1822851
Funder
Knowledge Foundation, ALWAYS projectAvailable from: 2023-12-28 Created: 2023-12-28 Last updated: 2024-03-15Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records

Hosseini, VahidKarlsson, Leif

Search in DiVA

By author/editor
Hosseini, VahidKarlsson, Leif
By organisation
Division of Welding Technology
In the same journal
Steel Research International
Manufacturing, Surface and Joining Technology

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 15 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf