The increasing demand for sustainable manufacturing has revived the interest in solid-state recycling (SSR) as a promising alternative method for aluminum waste. In this context, chips generated during machining processes constitute a substantial portion of aluminum waste, offering significant potential for recycling and mitigating waste. However, the machining chip morphology significantly impacts the properties of chip-based recycled parts. This review paper examines the current state-of-the-art solid-state recycling methods, focusing on hot forging, extrusion, equal channel angular pressing, friction stir extrusion and field-assisted sintering. It investigates the impact of aluminum chip morphology on the properties of the directly recycled material, emphasizing the chip machining consequence on the final quality of the product. Several studies reported that the strain and operating temperature are the most influential factors in SSR processes, followed by chip size with an average length of less than 4 mm. Yet, the heating time up to 3 h also had a major impact on chip weld strength. The findings highlighted the significance of aluminum chip morphology in improving the quality of recycled material. The properties of direct recycled samples primarily depend on chip weld strength and microstructure. Overall, this study presented a comprehensive overview of the current state of solid-state recycling and emphasized the significance of chip morphology in advancing the recycling process. Consequently, it equips researchers with a valuable resource for developing effective strategies for sustainable recycling of aluminum chips with high quality.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11325671PMC
http://dx.doi.org/10.1016/j.heliyon.2024.e34433DOI Listing

Publication Analysis

Top Keywords

solid-state recycling
16
chip morphology
16
recycling aluminum
8
aluminum waste
8
chip
8
aluminum chip
8
recycled material
8
chip weld
8
weld strength
8
recycling
7

Similar Publications

Highly Efficient and Linearly Polarized Light Emission of Micro-LED Integrated with Double-Functional Meta-Grating.

Nano Lett

December 2024

Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi Provincial Key Laboratory of Photonics and Information Technology, Xi'an Jiaotong University, Xi'an 710049, China.

Linearly polarized micro light-emitting diodes (LP-Micro-LEDs) exhibit exceptional potential across diverse fields. The existing methods to introduce polarization to initially unpolarized Micro-LEDs and to further enhance the degree of polarization are, however, at the expense of low luminous efficiency. We fabricated a GaN-based blue Micro-LED integrated with a Al nanograting and a specially designed Ag/GaN meta-grating, which overcomes the dilemma between the luminous efficiency and polarization degree by simultaneously introducing the effects of mode selection and energy recycling.

View Article and Find Full Text PDF
Article Synopsis
  • * A new green recovery strategy is proposed using natural low-melting mixture solvents (LoMMSs) that are safe, cost-effective, biodegradable, and highly efficient for extracting metals from ASIBs.
  • * This method achieves nearly 100% extraction of sodium with high selectivity and allows for cost-effective metal precipitation using water, making it more energy-efficient than traditional lithium-ion battery recycling.
View Article and Find Full Text PDF

Divergent Adsorption Regulation in Metal-Organic Frameworks for Highly Efficient CF/CF Separation.

Adv Sci (Weinh)

December 2024

Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China.

Article Synopsis
  • * A new divergent regulation strategy is introduced that improves separation efficiency by selectively shielding metal sites and altering pore geometry to better accommodate hexafluoroethane (CF) while reducing its affinity for the host material.
  • * This innovative approach achieves record-high low-pressure CF uptake and selectivity, evidenced by the production of highly pure electronic-grade CF (over 99.999%) from an industrial mixture, alongside excellent stability and recyclability performance.
View Article and Find Full Text PDF

Capturing carbon dioxide from diluted streams, such as flue gas originating from natural gas combustion, can be achieved using recyclable, humidity-resistant porous materials. Three such materials were synthesized by chemically modifying the pores of metal-organic frameworks (MOFs) with Lewis basic functional groups. These materials included aluminum 1,2,4,5-tetrakis(4-carboxylatophenyl) benzene (Al-TCPB) and two novel MOFs: Al-TCPB(OH), and Al-TCPB(NH), both isostructural to Al-TCPB, and chemically and thermally stable.

View Article and Find Full Text PDF

Effects of Postweld Heat Treatment on Interfacial Behavior and Mechanical Properties of Joints Welded with Cu/Ni-Cr Alloy.

Materials (Basel)

November 2024

State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China.

Welded cable composed of nickel-chromium (Ni-Cr) alloy and copper is a crucial component in the resistance heating technology used for heavy oil production. Tungsten inert gas (TIG) welding was employed to join the copper and Ni-Cr alloy using copper filler wire, and the stability of the welded joint was analyzed under high-temperature service conditions. We examined the changes in the microstructure and properties of the welded joint after postweld heat treatment (PWHT) at 600 °C for 3, 6, and 12 days.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!