Removal of iron from secondary aluminum alloys by metal melt filtration (A07)

在子项目A07中，研究了SFB 920中生产的功能过滤材料的可用性，用于去除初级固化的含铁金属间化合物，以减少二次铝熔体中的铁含量。因此，CRC 920中使用的具有典型Fe含量的Al-Si-Mg合金A356将在Mn和Cr的影响下进行调节，接近于（Al）固溶体的液相温度。二次铝合金与功能性过滤材料的相互作用将特别研究关于含铁金属间化合物的成核和潜在的原位层结合铁的形成。

The usability of functional filter materials, produced within the SFB920, for removal of primary solidified, Fe-containing intermetallic in order to reduce the Fe-content in secondary Al-melts is investigated within the subproject A07. Therefore, the Al-Si-Mg alloy A356 used within the CRC 920 with typical Fe-contents will be conditioned under the influence of Mn and Cr close above the liquidus-temperature of the (Al)-solid solution. The interaction of the secondary Al-alloys with the functional filter materials will be particularly studied regarding nucleation of Fe-containing intermetallic and the potential formation of in-situ layers to bind Fe.