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
Identification of Weld Residual Stresses Using Diffraction Methods andtheir Effect on Fatigue Strength of High Strength Steels Welds
Welding Research Institute - Industrial Institute SR, Račianska 71, 83259 Bratislava, Slovakia .
University West, Department of Engineering Science, Research Enviroment Production Technology West. (PTW, Welding technology)ORCID iD: 0000-0001-8822-2705
Nuclear Physics Institute ASCR v.v.i., 250 68 Řež, Czech Republic .
Nuclear Physics Institute ASCR v.v.i., 250 68 Řež, Czech Republic .
2014 (English)In: Materials Science Forum, ISSN 0255-5476, E-ISSN 1662-9752, Vol. 768-769, p. 668-674Article in journal (Refereed) Published
Abstract [en]

It is well known that fatigue strength of welded joints does not depend on steel strength. Better fatigue strength of welded joints, e.g. longer life time of fatigue loaded weld structures, can be achieved with a smooth transition between the weld and the base material to minimize stress concentration. It has also been recognized that residual stresses play a critical role in the fatigue behaviour of welds. In the last decade an extensive research has been performed in order to increase the fatigue strength of high strength steel weldments. The martensite and bainite transformation start temperatures of weld metals have been shown to have a large effect on fatigue life time of high strength steel welds. This is of particular importance if the full potential of high strength steels is to be used in fatigue loaded constructions. A detailed investigation of the effect of phase transformation temperature on residual stress distribution in the vicinity high strength steel welds and its effect on fatigue life time has been performed. The transformation temperature of the weld metal was varied by changing the chemical composition of the filler material. Residual stress distributions have been measured by neutron as well as by X-ray diffraction and fatigue tests have been performed on the fillet welds. A strong effect of weld metal phase transformation temperature on residual stress level was observed. Fatigue strength increased approximately three times when an optimised low transformation temperature filler material was used in comparison to the application of conventional filler material

Place, publisher, year, edition, pages
Trans Tech Publications Inc., 2014. Vol. 768-769, p. 668-674
Keywords [en]
Residual stresses, weld, fatigue, high strength steel, Work-integrated learning, WIL
Keywords [sv]
AIL
National Category
Metallurgy and Metallic Materials
Research subject
ENGINEERING, Manufacturing and materials engineering; Work Integrated Learning
Identifiers
URN: urn:nbn:se:hv:diva-5689DOI: 10.4028/www.scientific.net/MSF.768-769.668ISI: 000336693000087Scopus ID: 2-s2.0-84886015866ISBN: 978-303785849-3 (print)OAI: oai:DiVA.org:hv-5689DiVA, id: diva2:661055
Conference
International Conference on Residual Stresses 9 (ICRS 9)
Available from: 2013-10-31 Created: 2013-10-31 Last updated: 2017-12-06Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records BETA

Karlsson, Leif

Search in DiVA

By author/editor
Karlsson, Leif
By organisation
Research Enviroment Production Technology West
In the same journal
Materials Science Forum
Metallurgy and Metallic Materials

Search outside of DiVA

GoogleGoogle Scholar

doi
isbn
urn-nbn

Altmetric score

doi
isbn
urn-nbn
Total: 258 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