Reference : Thixoextrusion of A357 aluminium alloy
Scientific journals : Article
Engineering, computing & technology : Materials science & engineering
http://hdl.handle.net/2268/8542
Thixoextrusion of A357 aluminium alloy
English
[fr] La thixoextrusion de l'alliage d'aluminium A357
Forn, Antonio mailto [> >]
Rassili, Ahmed mailto [Université de Liège - ULg > Département d'aérospatiale et mécanique > Science des matériaux métalliques >]
Vaneetveld, Grégory mailto [Université de Liège - ULg > Département d'aérospatiale et mécanique > Science des matériaux métalliques >]
Pierret, Jean-Christophe mailto [Université de Liège - ULg > Département d'aérospatiale et mécanique > Science des matériaux métalliques >]
Menargues, Sergi mailto [> >]
Baile, Maite Theresa mailto [> >]
Campillo, Manel mailto [> >]
2010
Transactions of Nonferrous Metals Society of China
Science Press
Yes
International
1003-6326
China
[en] thixoextrusion ; solid fraction ; aluminium alloys
[en] The aim of this work is to attempt the application of A357 Al-Si-Mg cast alloy in the thixoextrusion process, evaluating the different parameters effect. Thixoextrusion offers several advantages compared to traditional hot-extrusion such as lower pressure, minor friction forces, higher material fluidity, longer tool life, etc. This type of semi-solid process requires high solid fractions (0.5<fs<1). Aluminium alloy A357 is a commercial cast alloy characterized by high strength, ductility and corrosion resistance. It is commonly used for cast production of automotive components and it is also suitable for semi-solid process, due to its ample range of solidification. A357 aluminium alloy has been used as a feedstock for thixoextrusion in order to investigate thixoformability at high solid fraction. Alloys with high solid fraction are less sensitive to temperature drops and allow laminar flow at higher speeds. To know the parameters that improve the mechanical properties of thixoextruded parts, some extrusion tests at constant speeds have been carried out. The results were used as the main criteria for assessing the thixoforming viability of the A357 alloy.
http://hdl.handle.net/2268/8542
also: http://hdl.handle.net/2268/35576

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