Changes in processing characteristics and microstructural evolution during friction extrusion of aluminum

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Changes in processing characteristics and microstructural evolution during friction extrusion of aluminum. / Halak, Ricardo M.; Rath, Lars; Suhuddin, Uceu F.H.R. et al.
In: International Journal of Material Forming, Vol. 15, No. 3, 24, 01.05.2022.

Research output: Journal contributionsJournal articlesResearchpeer-review

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@article{ab1e59c132cf483e970f890bc52f668c,
title = "Changes in processing characteristics and microstructural evolution during friction extrusion of aluminum",
abstract = "This study focuses on characterizing the microstructural evolution of the aluminum alloy 7075 in the friction extrusion process under different extrusion forces and die angles. Depending on these conditions, two fundamentally different extrusion types are found, showing significant differences in the process characteristics and microstructural evolution. One of the two extrusion types is associated with high extrusion force and low die angle, leading to fully recrystallized wires with average grain size around 1.2 μ m. The microstructural analysis indicates that the microstructure present in the wires is generated in the charge material by the combination of tool geometry, load induced material flow and friction conditions in the initial stages of the friction extrusion process. The identified processing conditions and influencing factors introduce an alternative route for friction extrusion at low extrusion ratios, capable of producing completely refined wires.",
keywords = "Aluminum alloy, Dynamic recrystallization, Friction extrusion, Mechanical properties, Solid state processing, Ultra-fine grains, Engineering",
author = "Halak, {Ricardo M.} and Lars Rath and Suhuddin, {Uceu F.H.R.} and {dos Santos}, {Jorge F.} and Benjamin Klusemann",
note = "Open Access funding enabled and organized by Projekt DEAL. B. Klusemann acknowledges funding from the European Research Council (ERC) under the European Union{\textquoteright}s Horizon 2020 research and innovation programme (grant agreement No 101001567). ",
year = "2022",
month = may,
day = "1",
doi = "10.1007/s12289-022-01670-y",
language = "English",
volume = "15",
journal = "International Journal of Material Forming",
issn = "1960-6206",
publisher = "Springer Paris",
number = "3",

}

RIS

TY - JOUR

T1 - Changes in processing characteristics and microstructural evolution during friction extrusion of aluminum

AU - Halak, Ricardo M.

AU - Rath, Lars

AU - Suhuddin, Uceu F.H.R.

AU - dos Santos, Jorge F.

AU - Klusemann, Benjamin

N1 - Open Access funding enabled and organized by Projekt DEAL. B. Klusemann acknowledges funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement No 101001567).

PY - 2022/5/1

Y1 - 2022/5/1

N2 - This study focuses on characterizing the microstructural evolution of the aluminum alloy 7075 in the friction extrusion process under different extrusion forces and die angles. Depending on these conditions, two fundamentally different extrusion types are found, showing significant differences in the process characteristics and microstructural evolution. One of the two extrusion types is associated with high extrusion force and low die angle, leading to fully recrystallized wires with average grain size around 1.2 μ m. The microstructural analysis indicates that the microstructure present in the wires is generated in the charge material by the combination of tool geometry, load induced material flow and friction conditions in the initial stages of the friction extrusion process. The identified processing conditions and influencing factors introduce an alternative route for friction extrusion at low extrusion ratios, capable of producing completely refined wires.

AB - This study focuses on characterizing the microstructural evolution of the aluminum alloy 7075 in the friction extrusion process under different extrusion forces and die angles. Depending on these conditions, two fundamentally different extrusion types are found, showing significant differences in the process characteristics and microstructural evolution. One of the two extrusion types is associated with high extrusion force and low die angle, leading to fully recrystallized wires with average grain size around 1.2 μ m. The microstructural analysis indicates that the microstructure present in the wires is generated in the charge material by the combination of tool geometry, load induced material flow and friction conditions in the initial stages of the friction extrusion process. The identified processing conditions and influencing factors introduce an alternative route for friction extrusion at low extrusion ratios, capable of producing completely refined wires.

KW - Aluminum alloy

KW - Dynamic recrystallization

KW - Friction extrusion

KW - Mechanical properties

KW - Solid state processing

KW - Ultra-fine grains

KW - Engineering

UR - http://www.scopus.com/inward/record.url?scp=85126466240&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/be58c397-cc56-3d48-aa8a-d04f7d5128cc/

U2 - 10.1007/s12289-022-01670-y

DO - 10.1007/s12289-022-01670-y

M3 - Journal articles

AN - SCOPUS:85126466240

VL - 15

JO - International Journal of Material Forming

JF - International Journal of Material Forming

SN - 1960-6206

IS - 3

M1 - 24

ER -

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