Mechanical behavior of hot extruded aluminum 6082 chip

• Published in: Scientific reports Vol. 14; no. 1; p. 6381
• Main Authors: Mahmoud, Seif El Din, El-Gamasy, Ramadan, El-Wahab, Ayman A. Abd
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 16.03.2024; Nature Publishing Group; Nature Portfolio
• Subjects: 639/166/988; 639/301; Alloys; Aluminum; Aluminum alloys; Aluminum chips; Aluminum recycling; Energy consumption; Extrusion dies; Hot extrusion; Humanities and Social Sciences; Manufacturing; Mechanical behavior; Mechanical properties; Microstructure; multidisciplinary; Process controls; Recycled materials; Recycling; Science; Science (multidisciplinary); Solid-state recycling; Steel production; Sustainability; Sustainable production; Temperature; Variance analysis; Solid-state recycling; Hot extrusion; Aluminum chips; Mechanical behavior; Microstructure; Aluminum recycling
• ISSN: 2045-2322; 2045-2322
• DOI: 10.1038/s41598-024-55151-0

In a bid to address the energy-intensive nature of primary aluminum production, this study explores the solid-state recycling of aluminum alloy 6082 chips through direct hot extrusion. Compacted at room temperature, chips were extruded at temperatures (350, 425, and 500 °C) and reduction ratios (6, 8.5, and 11) to optimize mechanical properties. Extensive analyses, including ANOVA and linear regressions, of strength, density, and microstructure revealed significant influences of those extrusion parameters. Optimizing these parameters within the study's aforementioned working ranges can impact the recycled material's strength; with a 36% reduction ratio increase and 20% temperature increase modestly reducing ultimate strength (2%), while a 20% temperature increase alone lowers yield strength more noticeably (9%). These findings highlight the potential for enhanced recycling and sustainable manufacturing.