Phase transition of Al－Fe－V－Si heat－resistant alloy by spray deposition
摘要
Solidification curve of Al-8.5Fe-1.7Si was calculated by thermodynamic models. Phase constitutions of Al-8.5Fe, Al-8.5Fe-1.7Si and Al-8.5Fe-1.7Si-1.3V alloys were analysed at different cooling rates by means of optical microscopy, X-ray diffraction, transmission electron microscopy and so on. Microstructures of spraying deposited ingots and their hot-processed samples were detected, and the phase transitions during spraying deposition, heating process and hot-processing were also studied. The results show that, by spraying deposition, the ideal structures of α(Al) and Al12(Fe, V)3Si can be obtained when cooling rate is above 105 K/s; and restraining the formation of Al8(Fe,V)2Si/Al13Fe4 can improve the properties of the alloy.
引用本文（GB/T 7714）
谭敦强, 黎文献, 肖于德, 等. Phase transition of Al－Fe－V－Si heat－resistant alloy by spray deposition[J]. Acta Scientiarum Naturalium Universitatis Sunyatseni, 2003.
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