Title :

Influence of Sr, Fe and Mn content and casting process on the microstructures and mechanical properties of AlSi7Cu3 alloy

Author(s) :

Li, Zaidao [Auteur]
Limodin, Nathalie [Auteur]
Laboratoire de Mécanique de Lille - FRE 3723 [LML]
Laboratoire de Mécanique de Lille - FRE 3723 [LML]
Tandjaoui, Amina [Auteur]
Quaegebeur, Philippe [Auteur]
Laboratoire de Mécanique de Lille - FRE 3723 [LML]
Laboratoire de Mécanique de Lille - FRE 3723 [LML]
Osmond, Pierre [Auteur]
Balloy, David [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Unité Matériaux et Transformations - UMR 8207 [UMET]

Journal title :

Materials Science and Engineering A

Volume number :

689

Pages :

286-297

Publication date :

2017-03-24

HAL domain(s) :

Chimie/Matériaux
Physique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]

English abstract : [en]

The effects of Strontium (Sr), Iron (Fe) and Manganese (Mn) additions, casting process (i.e., cooling rate) on the microstructures and mechanical properties of AlSi7Cu3 alloy were investigated. 2D and 3D metallographic and ...
Show more >The effects of Strontium (Sr), Iron (Fe) and Manganese (Mn) additions, casting process (i.e., cooling rate) on the microstructures and mechanical properties of AlSi7Cu3 alloy were investigated. 2D and 3D metallographic and image analysis have been performed to measure the microstructural changes occurring at different Sr, Fe and Mn levels and casting process. The evolution of mechanical properties of the alloys has been monitored by Brinell and Vickers hardness measurement and tensile tests. Addition of Sr slightly refines the eutectic silicon particles but it also introduces more pores. The combined addition of Fe and Mn induces an increase of Fe-rich intermetallic compounds which include both α-Al15(Fe,Mn)3Si2 and β-Al5FeSi phase, while the volume fraction of porosity decreases with the Fe and Mn content increase. The secondary dendrite arm spacing slightly decreases with the addition of Sr, Fe and Mn alloying elements.Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
ENSCL
CNRS
Centrale Lille
INRA

Collections :

• Laboratoire de Mécanique, Multi-physique, Multi-échelle (LaMcube) - UMR 9013
• Unité Matériaux et Transformations (UMET) - UMR 8207

Research team(s) :

Métallurgie Physique et Génie des Matériaux

Submission date :

2019-05-16T17:19:52Z
2024-07-08T11:40:30Z