Structure development in rapidly solidified Al-Fe-V-Si ribbons

Date

2004-05-25

Author

Yaneva, S
Kalkanlı, Ali
Petrov, K
Petrov, R
van Houbaert, IY
Kassabov, S

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Microcrystalline Al-8.5 wt.% Fe-1.06 wt.% V-2.75 wt.% Si, ribbon was produced by a planar flow casting (PFC) technique. Environmental scanning electron microscopy, X-ray diffraction and Mossbauer spectroscopy proved that the polycrystalline alloy consists of a supersaturated Al matrix and quaternary Al-S-Fe-V dispersoids. The observed single exothermal peak in the differential scanning calorimetry curves was ascribed to partial decomposition of the Al supersaturated solid solution. After prolonged heating at 873 K, the microcrystalline alloy still consists of supersaturated Al matrix with lattice parameter 0.40485(4) nm, reinforced by silicide particles with chemical formula Al-13.18(Fe,V)(1.84)Si and lattice parameter 1.2578(8) nm. (C) 2004 Published by Elsevier B.V.

Subject Keywords

Mechanical Engineering, General Materials Science, Mechanics of Materials, Condensed Matter Physics

URI

https://hdl.handle.net/11511/63317

Collections

Department of Metallurgical and Materials Engineering, Article