Title :

Influence of Fe content on the damage mechanism in A319 aluminum alloy: Tensile tests and digital image correlation

Author(s) :

Li, Zaidao [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Laboratoire de Mécanique de Lille - FRE 3723 [LML]
Limodin, Nathalie [Auteur]
1252|||Laboratoire de Mécanique de Lille - FRE 3723 [LML] (OLD)
Tandjaoui, Amina [Auteur]
Laboratoire de Mécanique de Lille - FRE 3723 [LML]
Quaegebeur, Philippe [Auteur]
Laboratoire de Mécanique de Lille - FRE 3723 [LML]
Laboratoire de Mécanique de Lille - FRE 3723 [LML]
Witz, Jean-Francois [Auteur]
Laboratoire de Mécanique de Lille - FRE 3723 [LML]
Laboratoire de Mécanique de Lille - FRE 3723 [LML]
Balloy, David [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Unité Matériaux et Transformations (UMET) - UMR 8207

Journal title :

Engineering Fracture Mechanics

Volume number :

183

Pages :

94-108

Publication date :

2017-10-01

HAL domain(s) :

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

English abstract : [en]

In order to study the role of Fe content on the damage mechanisms of Al–Si–Cu alloy on a microstructural level, a Digital Image Correlation (DIC) method has been developed and performed on two Al–Si–Cu alloys: a high-Fe ...
Show more >In order to study the role of Fe content on the damage mechanisms of Al–Si–Cu alloy on a microstructural level, a Digital Image Correlation (DIC) method has been developed and performed on two Al–Si–Cu alloys: a high-Fe alloy (0.1 wt.% Fe) and a low-Fe alloy (0.8 wt.% Fe). Tensile tests on flat specimens have been performed, and a Questar long distance microscope has been used for the in-situ observation during tensile tests. The field measurements allow to identify and track the development and localization of deformation, and the fracture surfaces of the tensile specimens are analyzed using Scanning Electron Microscopy and Energy-Dispersive X-ray spectrometry (SEM-EDX) to identify the damage mechanisms. The results show that crack initiation occurs through the fracture of hard inclusions, i.e. Si particles, iron-intermetallics and Al2Cu particles in the high stress concentration region. Cracks often propagate through the fracture of hard inclusions rather than by their decohesion from the matrix.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 :

2019-05-17T09:25:09Z
2021-06-28T11:21:50Z
2024-04-23T08:58:54Z