Fatigue of Laser-Welded Structures: Role of Residual Stress
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F25797000%3A_____%2F22%3AN0000027" target="_blank" >RIV/25797000:_____/22:N0000027 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/B9780128229446000268?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/B9780128229446000268?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/B978-0-12-822944-6.00026-8" target="_blank" >10.1016/B978-0-12-822944-6.00026-8</a>
Alternative languages
Result language
angličtina
Original language name
Fatigue of Laser-Welded Structures: Role of Residual Stress
Original language description
Article explains the relationship between fatigue resistance, microstructure, mechanical properties and residual stresses of laser-welded structures. The fatigue of the laser welds, even of those containing the defects, was better than the fatigue of the arc-welded samples. As expected, the fatigue cracks of the samples were always initialized on the weld surface, where tensile residual stresses were highest. The fusion zone of welds is the most critical area for the potential surface crack initialization because of the singularity with strong changes of numerous material properties including surface tensile residual stresses. Nevertheless, an attempt to quantify the role of residual stresses in fatigue tests was self-contradictory. It was shown that the analysis of microstructural changes by X-ray diffraction (represented mainly by microstrains) indicated that this method could be a good indicator of future crack initialization and propagation.
Czech name
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Czech description
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Classification
Type
C - Chapter in a specialist book
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
<a href="/en/project/TH02010664" target="_blank" >TH02010664: Innovative methods of welding of high pressure devices using laser technologies</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Book/collection name
Materials Science and Materials Engineering
ISBN
9780128035818
Number of pages of the result
36
Pages from-to
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Number of pages of the book
1000
Publisher name
Elsevier
Place of publication
Amsterdam, Holandsko
UT code for WoS chapter
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