Experimental investigation and numerical prediction of the peripheral coarse grain (PCG) evolution during the extrusion of different AA6082 aluminum alloy profiles.

M Negozio, A Segatori, R Pelaccia, B Reggiani… - Materials …, 2024 - Elsevier
Abstract Peripheral Coarse Grain (PCG) is an undesirable defect that may occur in the
extrusion of medium-strength Al-Mg-Si aluminum alloys. This phenomenon usually degrade …

Modeling of recrystallization behaviour of AA6xxx aluminum alloy during extrusion process

M Negozio, A Segatori, R Pelaccia, B Reggiani… - … of Nonferrous Metals …, 2024 - Elsevier
An innovative approach was introduced for the development of a AA6063 recrystallization
model. This method incorporated a regression-based technique for the determination of …

Numerical, experimental, and analytical investigation of the skin contamination evolution in the extrusion of different industrial profiles

M Negozio, R Pelaccia - The International Journal of Advanced …, 2024 - Springer
In the context of aluminum alloy extrusion, the presence of the skin contamination defect
imposes the scrap of the contaminated profile length due to its lower mechanical properties …

Hot torsion tests of AA6082 alloy

S Di Donato, R Pelaccia, M Negozio… - Key Engineering …, 2024 - Trans Tech Publ
Materials characterization and the knowledge of their elastic-plastic behavior are of
fundamental importance for the design of industrial manufacturing processes. Nowadays …

Finite element modeling of microstructure evolution and bonding during Friction Stir Extrusion of AA6061 powder at different tool feed rates and rotational speeds

M Negozio, S Bocchi, L Rath, E Ghio - Materials Characterization, 2025 - Elsevier
Abstract Friction Stir Extrusion (FSE) enhances material properties by producing a fine-
grained microstructure, offering improved mechanical strength and eliminating the need for …

[HTML][HTML] Efficiency and Microstructural Forecasts in Friction Stir Extrusion Compared to Traditional Hot Extrusion of AA6061

S Bocchi, M Zambelli, G D'Urso, C Giardini - Journal of Manufacturing and …, 2024 - mdpi.com
Conventional aluminum recycling consumes a substantial amount of energy and has a
negative impact on secondary alloys. To address this challenging topic, Friction Stir …

Microstructure Evolution and FEM Prediction on AA6XXX Alloys

M Negozio, R Pelaccia, L Donati… - Key Engineering …, 2024 - Trans Tech Publ
The microstructure evolution during the extrusion process of AA6XXX aluminum alloys is
getting a significant interest from extruders and researchers because of the effect of the grain …

Prediction of the microstructure evolution during the friction stir extrusion of a AA6061 aluminum alloy

S Bocchi, M Negozio, C Giardini… - Materials Research …, 2024 - mrforum.com
In recent years, the development of Friction Stir Extrusion (FSE) simulation models becomes
crucial for gaining a deeper understanding of its underlying physics. Concurrently, there is a …