The structure of directionally frozen Al–CuAl2eutectic alloy
- 1 June 1969
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine
- Vol. 19 (162) , 1285-1297
- https://doi.org/10.1080/14786436908228650
Abstract
The structure of Al–CuAl2 eutectic alloy has been examined by transmission electron microscopy. The orientations of phases and of preferred lamellar interfaces have been determined and it is shown how small deviations from these preferred orientations are accommodated by tilt and/or twist boundaries. The dislocation structures of sub-boundaries and of the semicoherent phase boundaries are illustrated. The hardness of the eutectic material is more sensitive to the rate of cooling in the solid state than it is to the lamellar spacing and the dislocation distribution in quenched and slowly cooled alloy is compared.Keywords
This publication has 7 references indexed in Scilit:
- The origin and growth of lineage structures in melt-grown crystalsPhilosophical Magazine, 1968
- The development of preferred orientations in eutectic alloysJournal of Crystal Growth, 1968
- An Electron-Microscope Investigation of the Lamellar Al-CuAl2EutecticMetal Science Journal, 1968
- The freezing of some continuous binary eutectic mixturesPhilosophical Magazine, 1964
- Dislocation configurations in AuCu3 and AuCu type superlatticesActa Metallurgica, 1961
- A Handbook of Lattice Spacings and Structures of Metals and AlloysPhysics Today, 1958
- Free Energy of a Nonuniform System. I. Interfacial Free EnergyThe Journal of Chemical Physics, 1958