Nowadays, aluminium alloys are adopted mainly to produce engineering and automotive components. The present investigation aims to design, cast and characterize novel functionally graded materials (FGMs) produced using Al-Mg and Al-Si alloys by gravity casting technique. Alloys were sequentially cast into a mould to obtain an FGM to realizing great mechanical and metallurgical bonding. Zn addition was further performed in FGM to increase the mechanical properties, thanks to the nucleation of the intermetallic phases MgZn2. Castings were subsequently mechanically tested by tensile tests, bending tests, hardness and microhardness measures to assess the products' quality. Microstructural characterizations were performed along the FGM to assess the metallurgical bonding and evaluate the microstructures obtained. Fracture, microstructural and compositional analysis will highlight the quality of this new FGM proposed. Possible applications of these materials are suggested, as automotive pistons or structural components.

Development and Characterization of New Functionally Graded Aluminium Alloys / Fracchia, Elisa; Rosso, Mario - In: Aluminium Alloys - Design and Development of Innovative Alloys, Manufacturing Processes and Applications / Timelli G.. - ELETTRONICO. - [s.l] : IntechOpen, 2022. - ISBN 978-1-83968-729-7. - pp. 1-19 [10.5772/intechopen.101022]

Development and Characterization of New Functionally Graded Aluminium Alloys

Elisa Fracchia;Mario Rosso
2022

Abstract

Nowadays, aluminium alloys are adopted mainly to produce engineering and automotive components. The present investigation aims to design, cast and characterize novel functionally graded materials (FGMs) produced using Al-Mg and Al-Si alloys by gravity casting technique. Alloys were sequentially cast into a mould to obtain an FGM to realizing great mechanical and metallurgical bonding. Zn addition was further performed in FGM to increase the mechanical properties, thanks to the nucleation of the intermetallic phases MgZn2. Castings were subsequently mechanically tested by tensile tests, bending tests, hardness and microhardness measures to assess the products' quality. Microstructural characterizations were performed along the FGM to assess the metallurgical bonding and evaluate the microstructures obtained. Fracture, microstructural and compositional analysis will highlight the quality of this new FGM proposed. Possible applications of these materials are suggested, as automotive pistons or structural components.
978-1-83968-729-7
Aluminium Alloys - Design and Development of Innovative Alloys, Manufacturing Processes and Applications
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2936594