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Project manager: Prof. Dr.-Ing. Volker Wesling
Funding period: 12/2009 - 10/2011
Funding agency: ZIM, Berlin
Funding reference: -
Contact person: Dr.-Ing. Gabriele Vidrich
The aim of the joint project is to improve the castability of AlCu alloys by means of new grain refining agents for use in complex and thermomechanically highly stressed components, and to develop a system for adapting grain refining agents specifically to the respective aluminum alloy systems in order to achieve improved effectiveness. These particles are to be supplied via powder-metallurgically produced master alloys, which are manufactured by mechanically alloying the particles with a carrier material and subsequent consolidation. After the master alloy is added to the aluminum melt, it dissolves, whereby the higher melting particles are dispersed in the melt and serve as heterogeneous nuclei for solidifying phases. The effectiveness of the master alloys should be reflected not only in improved castability but also in the mechanical properties. Alternative manufacturing processes for the grain refining agents that have the potential for series production are also to be tested. The final aim is to define a manufacturing process chain that enables efficient and cost-minimized production, and an industrial company is also involved in this research project alongside Clausthal University of Technology.