Die geometry influence on the texture and microstructure development during extrusion of AZ31 and ZK60 magnesium alloy chips

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet

Authors

Solid state recycling by direct extrusion of metal chips can significantly reduce energy requirements in comparison to traditional recycling strategies and primary production. The process consists of cold-compacting the chips into chip-based billets and subsequent hot extrusion to the desired profile. Thereby, mechanical properties comparable to conventional profiles made from as-cast billets can be achieved. This study examines the development of microstructure and texture and their impact on the mechanical properties. Consequently, extrusion experiments are conducted using two sets of dies, namely a flat face (FF) die and an ECAP die, with magnesium alloys AZ31 and ZK60. The texture of the profiles and extrusion remainders of both dies is measured using EBSD and XRD in order to analyse the influence of the chips and deformation path on the texture development. The microstructure of the extruded chip-based profiles exhibits notable grain refinement, which can be attributed to the substantial mechanical strain introduced during milling and compaction of the chips. Furthermore, it is demonstrated that the combination of chip-based billets and FF die extrusion results in a favourable weakening of basal texture and development of a RE-like < 2–1-11 > texture component, thus causing a tilt of basal planes out of extrusion direction. Conversely, ECAP extrusion leads to an increased intensity of basal texture, highlighting the influence of deformation path on texture development. Finally, it is shown that a combination of microstructure and texture effects can result in preferable mechanical properties of chip-based profiles.
OriginalspracheEnglisch
Aufsatznummer113545
ZeitschriftMaterials and Design
Jahrgang249
Anzahl der Seiten13
ISSN0264-1275
DOIs
PublikationsstatusErschienen - 01.2025

Bibliographische Notiz

Publisher Copyright:
© 2024 The Authors

DOI

Zuletzt angesehen

Publikationen

  1. Imagining ways forward
  2. Theories of Development of Democracy
  3. Valorization of industrial waste and by-product streams via fermentation for the production of chemicals and biopolymers
  4. Exploring inclusive education in times of COVID-19
  5. Habilitation von Dr. Mark Euler, Leuphana Universität
  6. Harmful interference and human rights
  7. A comparison of self-reports and electrodermal activity as indicators of mathematics state anxiety.
  8. Associations between the financial and industry expertise of audit committee members and Key Audit Matters within related audit reports
  9. The Settlement of EEZ Fisheries Access Disputes under UNCLOS
  10. Aí é orixá!
  11. Think globally, learn locally!
  12. The persistent decline in unionization in Western and Eastern Germany, 1980-2004
  13. Marginal Calluna populations are more resistant to climate change, but not under high-nitrogen loads
  14. Management Consulting Firms as Institutional Agents
  15. Ludic Interfaces
  16. Habitat continuity matters
  17. Algorithmen? Nein, danke!
  18. The role of empathy and empathic leadership practices in schools – a scoping review
  19. Crack closure mechanisms in residual stress fields generated by laser shock peening
  20. The Anonymous Powers of the Habitus
  21. The effect of organic acids and alcohols on precipitation of phosphate using calcined seashell powder
  22. Implementing sustainable food forests
  23. Biodegradability of some antibiotics, elimination of the genotoxicity and affection of wastewater bacteria in a simple test
  24. Action tendencies and characteristics of environmental risks
  25. Begleitforschung zum NRW-Förderprogramm
  26. Relationalität I+II
  27. A pluralistic and integrated approach to action-oriented knowledge for sustainability
  28. Governance for urban sustainability through real-world experimentation – Introducing an evaluation framework for transformative research involving public actors
  29. Modelling habitat and spatial distribution of an endangered longhorn beetle
  30. The Ethical Risks of Analyzing Crisis Events on Social Media with Machine Learning
  31. Monitoring mental stressors at work with the work health audit instrument factors
  32. Crime does pay (at least when it's violent)!
  33. Lucia Moholy’s idle hands
  34. Evaluating the efficacy and cost-effectiveness of web-based indicated prevention of major depression
  35. Zwischen Disruption und Integration
  36. Biomass Composition of Blue Mussels, Mytilus edulis, is Affected by Living Site and Species of Ingested Microalgae