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급냉응고된 Al-(Fe , Ce) 합금에서 형성되는 석출상의 X-선적연구
박익민,이규한,최정철,조형호 ( Ik Min Park,Kyu Han Lee,Jeong Cheol Choe,Hyung Ho Jo ) 한국주조공학회 1988 한국주조공학회지 Vol.8 No.4
N/A To obtain detailed information on the metastable and the equilibrium phases in rapidly solidified Al-(Fe, Ce) alloys, analysis of X-ray diffraction pattern has been carried out. It has been found that the metastable phase formed in Al-Fe alloys including up to 6w% Fe is Al_6Fe and the equilibrium phase is Al₃Fe. Any X-ray diffraction peak corresponding to the equilibrium phase Al_(13)Fe₄has not been observed during aging. In Al-4wt% Fe alloy, which is ribbon shape with thickness less than 70㎛, aged at 400℃ for lh after rapid solidification, unidentified phase has been found. In Al-4wt% Ce alloy, only X-ray diffraction peak corresponding to the equilibrium phase, Al₄Ce has been observed. It has been found that the metastable phase Formed in Al-Fe-Ce alloys including up to 6wt% Fe and 4wt% Ce is Al_6Fe and the equilibrium phases are Al₃Fe and Al_(10)CeFe₂.