TY - CHAP

T1 - Feasibility Study of Solid-State Recycling through Direct Hot Rolling of AA5754 Aluminum Chips for Automotive Applications

AU - El Mehtedi, Mohamad

AU - Buonadonna, Pasquale

AU - El Mohtadi, Rayane

AU - Loi, Gabriela

AU - Aymerich, Francesco

AU - Ben Khalifa, Noomane

AU - Carta, Mauro

N1 - Publisher Copyright: © 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

PY - 2024/10/1

Y1 - 2024/10/1

N2 - Recently, researchers have done a lot of efforts to develop new solid-state recycling processes, both experimentally and developing numerical models. This kind of process is energysaving and environmentally friendly compared to the conventional aluminum recycling process because it avoids the melting step. The purpose of this study is to assess the feasibility of an innovative solid-state recycling process using direct hot rolling in a non-heat-treatable aluminum alloy for automotive applications. The chips made of AA5754 have been produced by turning a bar without the usage of lubricants and compacted with a 150 kN load; the compacted billets were treated at 400°C and directly hot rolled in several successive passes. Rolled samples are then analyzed in terms of Vickers microhardness and microstructure in both as-rolled and heat treatment conditions, this last was performed at 185°C simulating the process of paint-bake. The produced sheets exhibit an excellent consolidation and bonding between chips.

AB - Recently, researchers have done a lot of efforts to develop new solid-state recycling processes, both experimentally and developing numerical models. This kind of process is energysaving and environmentally friendly compared to the conventional aluminum recycling process because it avoids the melting step. The purpose of this study is to assess the feasibility of an innovative solid-state recycling process using direct hot rolling in a non-heat-treatable aluminum alloy for automotive applications. The chips made of AA5754 have been produced by turning a bar without the usage of lubricants and compacted with a 150 kN load; the compacted billets were treated at 400°C and directly hot rolled in several successive passes. Rolled samples are then analyzed in terms of Vickers microhardness and microstructure in both as-rolled and heat treatment conditions, this last was performed at 185°C simulating the process of paint-bake. The produced sheets exhibit an excellent consolidation and bonding between chips.

KW - AA5754 chips

KW - automotive

KW - Direct Hot Rolling

KW - microstructure

KW - Solid-state recycling

KW - Engineering

UR - http://www.scopus.com/inward/record.url?scp=85208439603&partnerID=8YFLogxK

U2 - 10.4028/p-J0bRTh

DO - 10.4028/p-J0bRTh

M3 - Chapter

AN - SCOPUS:85208439603

SN - 9783036406824

T3 - Materials Science Forum

SP - 3

EP - 12

BT - Aluminum, Polymers, Composites and Additive Manufacturing

A2 - Omatsu, Takashige

A2 - Donati, Lorenzo

A2 - Alin Sirbu, Nicursor

A2 - Ali, Amjad

PB - Trans Tech Publications Ltd

ER -