【摘 要】
：
The microstructure of Al-F.e binary ahoy processed by metal mould casting was investigated.The effects produced by Fe contents and the pouring temperature on the solidification structures of Al-Fe bin
【机 构】
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School of Materials Science and Engineering, Northeastern University, China
【出 处】
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15th International Conference on Aluminium Alloys(ICAA15)(第十
论文部分内容阅读
The microstructure of Al-F.e binary ahoy processed by metal mould casting was investigated.The effects produced by Fe contents and the pouring temperature on the solidification structures of Al-Fe binary alloy were studied.The results show that Al-Al3Fe eutectic and Al-Al6Fe eutectic exist together in the process of solidification.With the Fe content increase from 2％ to 5％, the solidification structures change from the hypoeutectic morphology to the hypereutectic morphology inside the cast bars.Under proper solidification condition, a full eutectic microstructure can be generated in Al-Fe alloys with 3％ Fe concentration.The microstructure in this case is characterized by the metastable regular eutectic Al-Al6Fe fibers of nano-scale in diameter, instead of the equilibrium eutectic Al-Al3Fe phase.The content of Fe at the certain range and the pouring temperature can affect the morphology and distribution of the eutectic phases.
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