Experimental and numerical investigation of laser beam-welded Al-Cu-Li joints using micro-mechanical characteristics

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet

Authors

The local tensile mechanical properties of laser beam-welded joints of AA2198 alloy with Al–Si filler wire were experimentally investigated. For this purpose, micro-flat tensile specimens were extracted from the fusion zone and the heat-affected zone. The chemical composition of the filler wire affects the local mechanical properties in the fusion zone, showing an approximately 26% decrease in yield strength from the radiation exposure side to the weld root side. The effect of post–weld heat treatment on the tensile mechanical behavior was additionally investigated for different heat treatment artificial ageing conditions. The maximum yield strength increase was noticed for 48 h of artificial ageing for the weld root side of the fusion zone. Several approximations were proposed to correlate the hardness measurements with the local tensile mechanical properties of the welded joint that allow for a fast assessment of the global tensile mechanical behaviour of the welded joint. To evaluate the effect of (i) artificial ageing and (ii) geometrical imperfections of the weld on the mechanical behavior of the welded joint, finite element analyses were performed, using the local mechanical properties as input to the model. It is shown that the local mechanical properties of the fusion zone play a pivotal role on the strain localization and fracture of the welded joint.
OriginalspracheEnglisch
ZeitschriftJournal of Materials Research and Technology
Jahrgang19
Seiten (von - bis)2431-2446
Anzahl der Seiten16
ISSN2238-7854
DOIs
PublikationsstatusErschienen - 01.07.2022

Bibliographische Notiz

Funding Information:
Diese Publikation wurde gefördert durch den Open-Access-Publikationsfonds der Leuphana Universität Lüneburg.

Publisher Copyright:
© 2022 The Author(s).

DOI

Zuletzt angesehen

Forschende

  1. Alexander Kujath

Publikationen

  1. Didactical design methods applied in design studios for Architectural and Cultural Sciences in Brazil
  2. Fremde Töpfe
  3. The competition rules applying to the relationship between a minority shareholder and the joint venture
  4. Leading academic change
  5. Digital innovation and transformation
  6. Temporary exports and characteristics of destination countries
  7. Maulwurf
  8. Körper
  9. New incremental methods for springback compensation by stress superposition
  10. Removal of the anti-cancer drug methotrexate from water by advanced oxidation processes
  11. Disentangling the Pathways and Effects of Ecosystem Service Co-Production
  12. E/Z isomerism without a double bond - An unusual type of stereoisomerism, and an unprecedented isomerisation in a bicyclobutane
  13. Action and action-regulation in entrepreneurship: Evaluating a student training for promoting entrepreneurship
  14. Spatial distribution of polyfluoroalkyl compounds in seawater of the German Bight
  15. Magnesium recycling: State-of-the-Art developments, part I
  16. A virus of distrust?
  17. Protecting older workers' employability
  18. Web-Based and Mobile Stress Management Intervention for Employees
  19. The role of expert feedback in the development of pre-service teachers’ professional vision of classroom management in an online blended learning environment
  20. How Organizing Matters for Societal Grand Challenges
  21. Collisionless damping in the spectra of active plasma resonance spectroscopic probes
  22. Hochschulentwicklung als Lernkontext: Studierende zu Mitgestaltenden machen durch Forschendes Lernen
  23. Value patterns in Europe and the United States
  24. Borders
  25. Impulse für die Migrationsgesellschaft
  26. Jacobi-Otto-Diesel
  27. Fazit
  28. Modelling of heat exchangers based on thermochemical material for solar heat storage systems
  29. Colour and Organization Studies
  30. Psychophysiological Correlates of Flow-Experience