Microstructural evolution of a 3003 based aluminium alloy during the CSET process

0546210 - FZÚ 2022 RIV CH eng J - Journal Article
Molnárová, Orsolya - Habr, Stanislav - de Prado, Esther - Čapek, Jaroslav - Ekrt, Ondřej - Németh, Gergely - Málek, P. - Lejček, Pavel
Microstructural evolution of a 3003 based aluminium alloy during the CSET process.
Materials. Roč. 14, č. 19 (2021), č. článku 5770. E-ISSN 1996-1944
R&D Projects: GA MŠMT(CZ) EF16_019/0000760; GA ČR GA20-05903S; GA MŠMT LM2018110
Grant - others:OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institutional support: RVO:68378271 ; RVO:61389005
Keywords : tube forming * complex shearing of extruded tubes * severe plastic deformation * microstructure * microhardness
OECD category: Condensed matter physics (including formerly solid state physics, supercond.); Condensed matter physics (including formerly solid state physics, supercond.) (UJF-V)
Impact factor: 3.748, year: 2021
Method of publishing: Open access

A new severe plastic deformation technique, known as the complex shearing of extruded tube (CSET), was applied to a 3003 based model aluminium alloy. This technique, consisting of a combination of extrusion and two consecutive Equal Chanel Angular Pressing (ECAP) passes accompanied with concurrent torsional straining, is capable to produce a fine-grained tubular sample directly from a bulk metallic cylinder in one forming operation. In the present paper, the microstructural development of the alloy during partial processes of CSET was studied in detail using light microscopy, electron backscatter diffraction, and transmission electron microscopy. It was found that CSET technique refines the grain size down to 0.4 µm and, consequently, increases the microhardness from the initial value of 40 HV to the final value of 120 HV. The contributions of partial processes of CSET to the total strain were estimated
Permanent Link: http://hdl.handle.net/11104/0322787