Abstract
High-shear melt conditioning (HSMC) technology was used for degassing and de-ironing of an aluminum alloy recovered from the Zorba cast fraction of the non-ferrous scrap from shredded end-of-life vehicles. The results showed that the recovery of aluminum alloys from the Zorba cast fraction was more than 80%. High-shear melt conditioning improved the degassing process during melt treatment in comparison with the adding of degassing tablets. The efficiency of the de-ironing process using HSMC increased by up to 24% after, increasing the Mn content to 0.8% in the melt. Adding Mn to Zorba melt enhanced the de-ironing process and eliminated the formation of β-AlFeSi intermetallic particles, which have a detrimental effect on both the mechanical and corrosion properties of the alloy.
Highlights
End-of-life aluminum recycling plays an important role in low-carbon aluminum supply and can provided direct cost benefits in component manufacture compared to using primary aluminum
It can be applied to casting processes, such as direct chill casting and twin roll casting [14]. It provides refinement and uniform distribution of the matrix and the Fe-rich phases [15], and efficient degassing [16] and enhanced de-ironing [17], which has a significant effect on the reduction in microstructural defects and the improvement in tensile properties of the recycled aluminum alloy [15,18]
This study has investigated the recycling efficiency and the impact of the high-shear melt conditioning (HSMC) process on the degassing and de-ironing of an aluminum alloy formulated from the cast aluminum fraction derived from a Zorba scrap stream
Summary
End-of-life aluminum recycling plays an important role in low-carbon aluminum supply and can provided direct cost benefits in component manufacture compared to using primary aluminum. Due to the low solubility of iron in solid aluminum, a variety of intermetallic compounds (Fe-IMCs) form during solidification The precipitation of these phases affects the surface quality of the products [5,6] and their morphology and distribution have a significant impact on mechanical properties [7]. It can be applied to casting processes, such as direct chill casting and twin roll casting [14] It provides refinement and uniform distribution of the matrix and the Fe-rich phases [15], and efficient degassing [16] and enhanced de-ironing [17], which has a significant effect on the reduction in microstructural defects and the improvement in tensile properties of the recycled aluminum alloy [15,18]. This study has investigated the recycling efficiency and the impact of the high-shear melt conditioning (HSMC) process on the degassing and de-ironing of an aluminum alloy formulated from the cast aluminum fraction derived from a Zorba scrap stream
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
