Chapter 3
Design of Recycled Alumix-123 Based Composites Reinforced
with γ-Al 2 O 3 through Combined Method; Sinter + Forging
F. Gatamorta, H. M. Enginsoy, E. Bayraktar, I. Miskioglu, and D. Katundi
Abstract Aluminium Metal Matrix Composites (AMMCs) have very light weight, high strength, and show better resistance
to corrosion, oxidation, and wear. Impact resistance is an especially important property of these AMMCs which is essential for
automotive applications. In this study, recycled aluminium matrix composites were designed through the powder metallurgy
route. As matrix, fresh scrap aluminium chips (Alumix-123), by-product of machining coming from the French aeronautical
company, were used. Fine -alumina particles (γ-Al 2 O 3 , 10 wt %), were used as main reinforcement element for the present
work. As secondary reinforcements, Mo and Cu were added in the matrix. In this study, a typical low cost but high
performance metal matrix composite was designed by using recycled aluminum chips (Alumix-123). This process comprises
of the mixing, blending and compacting of aluminum chips through press moulding and pre-sintering and finally forging. In
the final stage, material parameters were optimized for improving physical and mechanical properties of these composites.
Further, the influence of reinforcement’s type and content on the mechanical properties has also been reviewed and discussed.
Damping capacities and damage were analysed by drop weight and quasi static compression tests. Microstructures were
analysed by the Scanning Electron Microscope (SEM).
3.1 Introduction
Aluminium based hybrid composites are the most demanding aeronautical and aerospace operational applications. During the
last decades, these composites are also very attractive for the automotive industry. Regarding to other manufacturing
processes such as casting machining, etc. manufacturing via powder metallurgy (PM) route are the high performance process
for producing net-shaped parts because of the facilities of the production of fully dense, low cost composites by using of
sintering and hot pressing/forging with sound and healthy microstructure [1–7]. Wear and impact loading are the most
important problems encountered in many industrial applications. Many different solution approaches have been developed for
the solution of these problems encountered in applications [4–9].
Developing new generation materials that will resist wear and impact loads and developing new manufacturing methods
for these materials are among the most important of these solutions [6–13]. (Alumix-123), by-product of machining coming
from the French aeronautical company, were used. This process comprises the mixing, blending and compacting of aluminum
F. Gatamorta
University of Campinas-UNICAMP-FEM, Campinas, São Paulo, Brazil
e-mail: fabiog@fem.unicamp.br
H. M. Enginsoy
Supmeca-Paris, School of Mechanical and Manufacturing Engineering, Paris, France
Usak University, School of Mechanical Engineering, Usak, Turkey
E. Bayraktar (*)
University of Campinas-UNICAMP-FEM, Campinas, São Paulo, Brazil
Supmeca-Paris, School of Mechanical and Manufacturing Engineering, Paris, France
e-mail: bayraktar@supmeca.fr
I. Miskioglu
Michigan Technological University ME-EM Department, Houghton, MI, USA
e-mail: imiski@mtu.edu
D. Katundi
Supmeca-Paris, School of Mechanical and Manufacturing Engineering, Paris, France
e-mail: dhurata.katundi@supmeca.fr
© The Society for Experimental Mechanics, Inc. 2021
R. P. Singh, V. Chalivendra (eds.), Mechanics of Composite, Hybrid and Multifunctional Materials, Volume 6,
Conference Proceedings of the Society for Experimental Mechanics Series, https://doi.org/10.1007/978-3-030-59868-6_3
9
Design of Recycled Alumix-123 Based Composites Reinforced
with γ-Al 2 O 3 through Combined Method; Sinter + Forging
F. Gatamorta, H. M. Enginsoy, E. Bayraktar, I. Miskioglu, and D. Katundi
Abstract Aluminium Metal Matrix Composites (AMMCs) have very light weight, high strength, and show better resistance
to corrosion, oxidation, and wear. Impact resistance is an especially important property of these AMMCs which is essential for
automotive applications. In this study, recycled aluminium matrix composites were designed through the powder metallurgy
route. As matrix, fresh scrap aluminium chips (Alumix-123), by-product of machining coming from the French aeronautical
company, were used. Fine -alumina particles (γ-Al 2 O 3 , 10 wt %), were used as main reinforcement element for the present
work. As secondary reinforcements, Mo and Cu were added in the matrix. In this study, a typical low cost but high
performance metal matrix composite was designed by using recycled aluminum chips (Alumix-123). This process comprises
of the mixing, blending and compacting of aluminum chips through press moulding and pre-sintering and finally forging. In
the final stage, material parameters were optimized for improving physical and mechanical properties of these composites.
Further, the influence of reinforcement’s type and content on the mechanical properties has also been reviewed and discussed.
Damping capacities and damage were analysed by drop weight and quasi static compression tests. Microstructures were
analysed by the Scanning Electron Microscope (SEM).
3.1 Introduction
Aluminium based hybrid composites are the most demanding aeronautical and aerospace operational applications. During the
last decades, these composites are also very attractive for the automotive industry. Regarding to other manufacturing
processes such as casting machining, etc. manufacturing via powder metallurgy (PM) route are the high performance process
for producing net-shaped parts because of the facilities of the production of fully dense, low cost composites by using of
sintering and hot pressing/forging with sound and healthy microstructure [1–7]. Wear and impact loading are the most
important problems encountered in many industrial applications. Many different solution approaches have been developed for
the solution of these problems encountered in applications [4–9].
Developing new generation materials that will resist wear and impact loads and developing new manufacturing methods
for these materials are among the most important of these solutions [6–13]. (Alumix-123), by-product of machining coming
from the French aeronautical company, were used. This process comprises the mixing, blending and compacting of aluminum
F. Gatamorta
University of Campinas-UNICAMP-FEM, Campinas, São Paulo, Brazil
e-mail: fabiog@fem.unicamp.br
H. M. Enginsoy
Supmeca-Paris, School of Mechanical and Manufacturing Engineering, Paris, France
Usak University, School of Mechanical Engineering, Usak, Turkey
E. Bayraktar (*)
University of Campinas-UNICAMP-FEM, Campinas, São Paulo, Brazil
Supmeca-Paris, School of Mechanical and Manufacturing Engineering, Paris, France
e-mail: bayraktar@supmeca.fr
I. Miskioglu
Michigan Technological University ME-EM Department, Houghton, MI, USA
e-mail: imiski@mtu.edu
D. Katundi
Supmeca-Paris, School of Mechanical and Manufacturing Engineering, Paris, France
e-mail: dhurata.katundi@supmeca.fr
© The Society for Experimental Mechanics, Inc. 2021
R. P. Singh, V. Chalivendra (eds.), Mechanics of Composite, Hybrid and Multifunctional Materials, Volume 6,
Conference Proceedings of the Society for Experimental Mechanics Series, https://doi.org/10.1007/978-3-030-59868-6_3
9