Abstract
In this paper, several Al–Si–Fe–Mn–Cr alloys were prepared, with different element contents and solidification conditions. The conventional Chinese character-shaped Al15(Fe,Mn)3Si2 particles were detected in slowly solidified Al–12Si–2Fe–4Mn alloy, while both (Al,Si)2Cr and Al15(Fe,Cr)3Si2 particles were formed in slowly solidified Al–12Si–2Fe–4Cr alloy. When the melt was solidified with high cooling speed, all of the α–Al15Fe3Si2-type intermetallics in Al–12Si–2Fe–4Mn, Al–12Si–2Fe–4Cr and Al–12Si–4Fe–xMn–yCr (x + y = 4) alloys exhibit dendrite-like. It was found that the higher Mn (or Cr) addition in Al–12Si–4Fe–xMn–yCr alloys, the higher Mn (or Cr) content in Al15(Fe,Mn,Cr)3Si2 phase. Compared to Mn atoms, Cr atoms have a higher tendentiousness to participate in the formation of Al15(Fe,Mn,Cr)3Si2 intermetallics.
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This research was financially supported by the Young Scholars Program of Shandong University.
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Liu, B., Ma, C., Li, L. et al. Morphologies and Compositions of α–Al15Fe3Si2-Type Intermetallics in Al–Si–Fe–Mn–Cr Alloys. Inter Metalcast 17, 1156–1164 (2023). https://doi.org/10.1007/s40962-022-00843-4
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DOI: https://doi.org/10.1007/s40962-022-00843-4