The Influence of Cooling Rate and Alloying Elements on the Microstructure Refinement of Al‐5Fe Alloy
2015
This research was focused on refining the microstructures of Al-5Fe alloy by increasing cooling rate during solidification and adding alloying elements. Under the condition of near-rapidly solidification, the primary Al13Fe4 phase was refined to the order of magnitude of 10 microns. Adding silicon to the alloy resulted in changes to the morphologies of the primary phase from starlike pattern to polygonal and firework-like patterns. The addition of silicon and cerium gave rise to further refinement in both primary and eutectic iron-rich phases to a significant extent.
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