Results 11 to 20 of about 708,304 (217)

Numerical modelling of the aluminium extrusion process when producing complex seactions. [PDF]

open access: yes
This thesis reports the analysis by FEM of both continuum and structural models describing the extrusion process. They were compared with experimental work and the agreement is satisfactory.
Longjang, Niu
core   +9 more sources

Numerical modelling of the aluminium extrusion process [PDF]

open access: yes
The extrusion of aluminium alloys involves the shaping of the product from an homogenised billet into a complex shape. In addition the properties of the extrudate are closely related to the processing parameters (temperature, stain rate, and material ...
Peng, Z.
core   +9 more sources

Microstructure and mechanical properties of moderate-speed extrudable Mg-Gd-Sm-Zr alloy

open access: yesMaterials Research Express, 2021
Extrusion Mg-Gd based alloy has the excellent mechanical properties, but usually at the sacrifice of productivity. In this paper, we designed a Mg-10Gd-1Sm-0.5Zr alloy, and have successfully extruded it with a die-exit speed of 3.2 m min ^−1 , and the ...
Jian Bao   +4 more
doaj   +1 more source

Grain refinement and weak-textured structures based on the dynamic recrystallization of Mg–9.80Gd–3.78Y–1.12Sm–0.48Zr alloy

open access: yesJournal of Magnesium and Alloys, 2021
We utilized electron backscatter diffraction to investigate the microstructure evolutions of a newly developed magnesium-rare earth alloy (Mg–9.80Gd–3.78Y–1.12Sm–0.48Zr) during instantaneous hot indirect extrusion. An equiaxed fine-grained (average grain
Yunwei Gui   +5 more
doaj   +1 more source

Numerical modelling of the aluminium extrusion process and comparison with results obtained from industrially extruded complex sections. [PDF]

open access: yes
This thesis reports the analysis of extruded products by Forge2009® and EBSD produced by the investigator in the BOAL plant. The 3D FEM module was used to study the required load, the temperature evolution, surface formation of the extrudate and material
Nilsen, Kjell Einar
core   +9 more sources

Microstructures and mechanical properties of Mg–6Zn–1Y–0.85Zr alloy prepared at different extrusion temperatures and speeds

open access: yesJournal of Materials Research and Technology, 2022
The influence of extrusion temperature and speed on the microstructures and mechanical properties of the as-extruded Mg–6Zn–1Y–0.85Zr (ZWK610) alloy was inquired by indirect extrusion at three ram speeds (1, 3 and 6 mm/s) and extruding temperatures (250,
Wenhong Liu   +6 more
doaj   +1 more source

Thermo-mechanical modelling of indirect extrusion process for magnesium alloys [PDF]

open access: yesInternational Journal of Material Forming, 2009
The complexity of deformation phenomena observed in magnesium and its alloys originates from its hexagonal closed packed crystallographic structure. Mechanical anisotropy and asymmetry in tension-compression are hence observed. A phenomenological model derived by Cazacu and Barlat accounts for the respective phenomena. However, the capabilities of this
Ertuerk, S.   +4 more
openaire   +1 more source

Changes in the cocoa shell dietary fiber and phenolic compounds after extrusion determine its functional and physiological properties

open access: yesCurrent Research in Food Science, 2023
The influence of different extrusion conditions on the cocoa shell (CS) dietary fiber, phenolic compounds, and antioxidant and functional properties was evaluated.
Vanesa Benítez   +6 more
doaj   +1 more source

Modelling of Thermo-Mechanical Behaviour of Magnesium Alloys during Indirect Extrusion [PDF]

open access: yesKey Engineering Materials, 2009
A yield function for hexagonal closed packed (hcp) metals was modified with respect to strain rate and temperature and developed to capture the material behaviour during extrusion. Magnesium alloy ZEK100 was extruded indirectly at 300°C into a round bar.
Ertuerk, S.   +4 more
openaire   +1 more source

The meniscal extrusion index is a reliable indirect sign of different meniscal lesion patterns: a classification based on percentage of meniscal extrusion

open access: yesKnee Surgery, Sports Traumatology, Arthroscopy, 2023
AbstractPurposeThis study's goal is to propose a straightforward classification system based on the MEI (Meniscal Extrusion Index), a measure of meniscal extrusion, that relates to various meniscal lesion patterns and has clinical and biomechanical significance.
Compagnoni, Riccardo   +6 more
openaire   +3 more sources

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