How to deal with scrap-based alloys with low CO2 emissions

Aluminium produced from scrap only needs 5% of the energy compared to virgin aluminium produced from bauxite ore. The viable way to reach a sustainable production and use of aluminium consequently is by increasing the usage of scrap, also in high performance products. The implication is that an accumulation of unwanted alloying elements and impurities may have a negative effect on final properties. In addition, there are changes in the use of aluminium that will change the nature of the scrap.

How to think and what tools are available to support the implementation of new protocols and solve problems to handle this. Tools have been used to help predict the influence of variations in composition on microstructure and properties. Swedish aluminium industry is smaller than the steel industry and, compared to the steel industry, and many of these tools have not been used broadly.