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

Please use this identifier to cite or link to this item: https://doi.org/10.48548/pubdata-144

Resource type	Conference Paper
Title(s)	Friction extrusion processing of aluminum powders: Microstructure homogeneity and mechanical properties
DOI	10.48548/pubdata-144
Handle	20.500.14123/163
Creator	Chan, Chang Yin-Cheng 0000-0002-9684-4720 (Helmholtz-Zentrum Hereon 03qjp1d79) Rath, Lars 0000-0002-7497-5201 (Helmholtz-Zentrum Hereon 03qjp1d79) Suhuddin, Uceu 0000-0002-4000-4036 (Helmholtz-Zentrum Hereon 03qjp1d79) Klusemann, Benjamin 0000-0002-8516-5087 142865192 (Institut für Produktionstechnik und -systeme (IPTS), Leuphana Universität Lüneburg 02w2y2t16)
Abstract	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.
Language	English
Keywords	Friction Extrusion; Solid-State Processing; Aluminum; Powder Consolidation
Year of publication in PubData	2024
Publishing type	Parallel publication
Publication version	Published version
Date issued	2023-04-19
Creation context	Research
Published by	Medien- und Informationszentrum, Leuphana Universität Lüneburg
Related resources	Relations of this publication Relations of this publication

Information regarding first publication

Field	Value
Resource type	Conference Proceeding
Title of the resource type	Materials Research Proceedings
Identifier	DOI: 10.21741/9781644902479-56
Publication year	2023
Volume	28
Pages	515 - 522
Publisher	Association of American Publishers