발간논문

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Vol.36, No.5, 666 ~ 675, 1998
Title
Effect of lattice matching of DO22 and DO23 on the phase transformation of the dispersoid in Al - Al3 ( Ti , V , Zr ) alloy
한승전 , 박성일 , 이혁모 Seung Zeon Han , Seong Il Park , Hyuck Mo Lee
Abstract
In the designing the dispersion-strengthened Al alloy with Al₃M (M=Ti,V,Zr), the behavior of trialuminide second phase was investigated. Al alloys with transition elements Ti, V and Zr added by 2. 4 and 6at% were fabricated by vacuum arc melting and microstructure of those was studied in terms of phase and composition. Transformation of metastable trialuminide structure in the formation of stable second phase was analyzed by adopting simple lattice matching concept that is related with lattice stability. For the confirmation of analysis some sample Al alloys were produced by rapid solidification method. Heat treatments of produced alloys at different times and at different temperatures showed the convincing proof.
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