Effect of laser peening process parameters and sequences on residual stress profiles

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet

Authors

Laser Peening (LP) is a surface modification technology that can induce high residual stresses in a metallic material. The relation between LP process parameters, in particular laser sequences, as well as pulse parameters and the resulting residual stress state was investigated in this study. The residual stress measurements, performed with the hole drilling technique, showed a non-equibiaxial stress profile in laser peened AA2024-T3 samples with a clad layer for certain parameter combinations. Shot overlap and applied energy density were found to be crucial parameters for the characteristic of the observed non-equibiaxial residual stress profile. Furthermore, the investigation showed the importance of the advancing direction, as the advancing direction influences the direction of the higher compressive residual stress component. The direction of higher residual stresses was parallel or orthogonal to the rolling direction of the material. The effect was correlated to the microstructural observation obtained via electron backscattered diffraction. Additionally, for peening with two sequences of different advancing directions, the study showed that the order of applied advancing directions was important for the non-equibiaxiality of the resulting residual stress profile.

OriginalspracheEnglisch
Aufsatznummer655
ZeitschriftMetals
Jahrgang9
Ausgabenummer6
Anzahl der Seiten14
DOIs
PublikationsstatusErschienen - 04.06.2019

Dokumente

DOI

Zuletzt angesehen

Forschende

  1. Marc Riedel

Publikationen

  1. Introduction
  2. Lifestyle-TV – Critical Attitudes towards „Banal” Programming
  3. Attrition and adherence in a WEB-based distress management program for implantable CARdioverter defibrillator patients (WEBCARE)
  4. From the environmental state to the sustainability state? Conceptualization, indicators, and examples
  5. Teaching in times of COVID-19
  6. Stabilizing the grid with regional virtual power plants
  7. Lernprozesse bei Lean Production
  8. Systemic aspects of auditory interactive art in the public sphere.
  9. Zufall mit System
  10. Typisierung des Umweltmanagements von Kindern und Jugendlichen in Greenteams mittels der Methode der Clusteranalyse
  11. Simulation wilder Spekulationen. Oder: Wie einmal Paul Baran mit einem falschen Modell das Internet erfand
  12. Context, contexts and appropriateness
  13. Hot working parameters and mechanisms in as-cast Mg-3Sn-1Ca alloy
  14. Resolution improvement of accelerometers measurement for drones in agricultural applications
  15. Influence of transition metal dopants and temperature on the dehydrogenation and rehydrogenation kinetics of NaAlH4
  16. What we mean when we talk about freedom – The KOMFOR study
  17. Feedback
  18. A room with a temperature
  19. § 176
  20. VKhUTEMAS at Martin-Gropius-Bau
  21. Step back from the forest and step up to the Bonn Challenge
  22. Herrmann Bahr - Renaissance
  23. Testing the limits of jurisdiction in investor-state arbitration in svalbard’s waters
  24. Mobile Digital Practices
  25. Attitudes towards computers and information technology at three universities in Germany, Belgium, and the U.S.
  26. Earnings less risk-free interest charge (ERIC) and stock returns: ERIC’s relative and incremental information content in a European sample
  27. Praxisphasen in der Lehrerausbildung
  28. Moving beyond the heuristic of creative destruction
  29. Spatial planning and territorial governance
  30. Ob man etwas tun kann oder nicht, ist eine rein mechanische oder materielle Frage
  31. “We cannot escape this”