Fatigue crack propagation in AA5083 structures additively manufactured via multi-layer friction surfacing

Research output: Journal contributionsComments / Debate / ReportsResearch

Authors

Multi-layer friction surfacing (MLFS) is a layer deposition technique that allows building structures from metals in solid state. As approach for additive manufacturing, the re-heating during subsequent deposition processes is significantly lower compared to fusion-based techniques. Available research work presents promising properties of MLFS structures from aluminum alloys, reporting no significant directional dependency in terms of tensile strength. The present study focuses on the fatigue crack propagation behavior and the role of layer-to-substrate (LTS) as well as layer-to-layer (LTL) interfaces. Compact tension specimens were extracted in different orientations from the MLFS stacks built from AA5083. The crack propagation parallel and perpendicular to the LTL interfaces as well as from the substrate material across LTS interface into the MLFS deposited material was investigated. The results show that LTL interfaces play no significant role for the crack propagation, i.e. specimens with LTL interfaces perpendicular and parallel to the crack presented no significant differences in terms of their fatigue crack propagation behavior. The specimens where the crack propagated from the substrate material across the LTS interface into the MLFS deposited material showed higher fatigue life than the specimens with crack propagation in the MLFS deposited material only. Crack retardation can be observed as long as the crack propagates within the substrate material, which is associated with compressive residual stresses introduced in the substrate during the layer deposition process.

Original languageEnglish
Article number100154
JournalAdditive Manufacturing Letters
Volume6
Number of pages7
ISSN2772-3690
DOIs
Publication statusPublished - 01.07.2023

Bibliographical note

Publisher Copyright:
© 2023 The Author(s)

    Research areas

  • Engineering - Multi-layer friction surfacing, Additive manufacturing, Solid state layer deposition, Fatigue crack propagation, Aluminum

Recently viewed

Publications

  1. A new magnesium alloy system
  2. A Configurational Approach to Investigating the Relationship Between Organizational Culture and Organizational Effectiveness Using Fuzzy-Set Analysis
  3. A microsystem for growth inhibition test of Enterococcus faecalis based on impedance measurement
  4. ADORE-Project Teaching Adolescent Struggling Readers
  5. Computational Study of Three-Dimensional Lagrangian Transport and Mixing in a Stirred Tank Reactor  
  6. Is the EnodePro® a Valid Tool to Determine the Bar Velocity in the Bench Press and Barbell Back Squat? A Comparative Analysis
  7. What makes online professional development effective?
  8. Resisting foundations
  9. Human development as a general theory of social change
  10. Still some way to go
  11. EEG 2014
  12. Der Fremdsprachliche Unterricht Englisch
  13. Are you teaching "distillation" correctly in your chemistry classes?
  14. Students' conceptions about the sense of smell
  15. Datenverarbeitungssystem 2
  16. Abiotic and biotic degradation of five aromatic organosilicon compounds in aqueous media
  17. Interdisciplinary engineering education in the context of digitalization and global transformation prozesses.
  18. § 264d HGB
  19. Reconciling Deliberateness and Emergence in Digital Transformation Strategy Formation — An Organizational Improvisation Perspective
  20. Explaining renewable energy consumption among students
  21. Debatte zur Relevanz der Managementwissenschaften
  22. Bereit für Flexibilität?
  23. Methodische Behandlung interner Materialkreisläufe in der Materialflusskostenrechnung
  24. Skala zur Erfassung der Selbstwirksamkeitserwartung bzgl. des mathematischen Modellierens
  25. Disclosure in European Competition Litigation Through the Lens of US Discovery
  26. Efficacy of a smartphone-based intervention - "holidaily" - promoting recovery behaviour in workers after a vacation
  27. § 15 Verbundene Unternehmen
  28. Evaluating the German version of the Work Ability Survey-R (WAS-R)
  29. Der Brand hinter der Brandmauer
  30. Je vous salue!
  31. Investititonsanalyse
  32. "Being There!"