Friction extrusion processing of aluminum powders: Microstructure homogeneity and mechanical properties

Publikation: Beiträge in SammelwerkenAufsätze in KonferenzbändenForschungbegutachtet

Authors

Friction extrusion (FE) is a solid-state process categorized as an energy-efficient process, utilizing the intrinsic friction-induced heat to plasticize and manufacture fully consolidated extrudate from various feedstocks, i.e. solid billet, chips and powder. Friction in the relative motion between the feedstock and the non-consumable die generates heat as well as imposes severe plastic deformation; this combination enables dynamic recrystallization and refinement of the microstructure. This study demonstrates the feasibility of directly extruding aluminum alloy powder into fully consolidated wire in a single step process. The extrudate is free of noticeable defects and shows predominantly homogeneous microstructure along the cross-section of the wire. The powder evolution upon passing through the die orifice was investigated in terms of morphology and microstructure. Additionally, the mechanical properties of the extrudate, i.e. microhardness and ultimate tensile strength, were compared to solid billets of AA7075 in different temper states and shows adequate mechanical properties without possible post-heat treatments.
OriginalspracheEnglisch
TitelMaterial Forming : The 26th International ESAFORM Conference on Material Forming - ESAFORM 2023 - held in Kraków, Poland, April 19-21, 2023
HerausgeberLukasz Madej, Mateusz Sitko, Konrad Perzynski
Anzahl der Seiten8
Band1
ErscheinungsortMillersville
VerlagMaterialsResearchForum LLC
Erscheinungsdatum19.04.2023
Seiten515-522
Aufsatznummer56
ISBN (Print)978-1-64490-246-2
ISBN (elektronisch)978-1-64490-247-9
DOIs
PublikationsstatusErschienen - 19.04.2023
Veranstaltung26th International ESAFORM Conference on Material Forming 2023 - AGH University of Science and Technology, Kraków, Polen
Dauer: 19.04.202321.04.2023
Konferenznummer: 26
https://esaform2023.agh.edu.pl/

Bibliographische Notiz

Funding Information:
This project has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement No 101001567).

Publisher Copyright:
© 2023, Association of American Publishers. All rights reserved.

DOI