Partial liquidus projection and vertical sections in the system Al–Fe–Si–Ti

•Partial liquidus projections in the system Al–Fe–Si–Ti were investigated.•Vertical sections in the quaternary system Al–Fe–Si–Ti were constructed.•Microstructure of as.cast alloys was discussed.•Primary crystallization fields were discussed.

The quaternary system Al–Fe–Si–Ti was characterized in the Fe-rich part for thermal reactions, which were studied by differential thermal analysis (DTA). As-cast alloys were investigated in order to gain additional information about primary crystallization fields. Three sections through the liquidus projection were constructed at 50, 60 and 70 at.% Fe, considering the experimental data and those from literature. In addition, five selected vertical sections are presented. The microstructures of selected as-cast alloys in the primary crystallization fields of the Laves phase Fe2Ti, the A2/B2 phase, FeSi and τ2 (FeSiTi) are discussed.

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