A very nice article from the AMAG’s AluReport on the challenges of recycling aluminium alloys and the AMAG’s approach with the new aluminium crossover alloys!
Aluminum is a cornerstone of modern engineering, offering unmatched lightweight properties, high recyclability, and versatility across industries. In transportation and aerospace, it is a key enabler of energy efficiency and reduced carbon footprints. However, the production of aluminum from ores is highly energy-intensive and contributing significantly to greenhouse gas emissions. Recycling aluminum addresses these challenges, requiring only 5 % of the energy needed for primary production and drastically reducing emissions. [1]
Crossover alloys represent a novel approach in aluminum alloy development, bridging the gap between the properties of traditionally distinct alloys series while incorporating higher amounts of tramp elements. Designed to address the challenges of increasing sustainability in high-performance applications, these alloys are uniquely positioned to meet the dual demands of increased mix-scrap utilization and mechanical excellence. The performance of certain members of the AMAG CrossAlloy® family in different heat treatment conditions is displayed in Figure 1 and compared to traditional wrought alloys. The concept of crossover alloys revolves around merging the beneficial traits of established alloy series while allowing input of various scrap streams. Beyond the 5xxx/7xxx (AMAG CrossAlloy®.57) and 6xxx/8xxx (AMAG CrossAlloy®.68) combinations, research efforts on 2xxx/7xxx and 6xxx/7xxx combinations are also increasing throughout the scientific community. A 2xxx/7xxx crossover allows strengthening by multiphase precipitation, therefore, reducing the lengthy production process of 2xxx series alloys [18,19]. On the other hand, in 6xxx/7xxx crossover alloys the introduction of Zn allows higher strengths [20] as it can enter the structure of all phases, without altering the precipitation sequence, yet it does result in precipitate disorders. [20,21].
Read the full article here on the new edition of the AluReport!
https://alureport.com/en/issues/issue-01-25/article/amag-crossalloy-r-the-new-generation-of-recycled-aluminium
Materials at Extremes 