The microstructure of rapidly solidified Al6Mn
@article{Shechtman1985TheMO, title={The microstructure of rapidly solidified Al6Mn}, author={Dan Shechtman and Ilan A. Blech}, journal={Metallurgical Transactions A}, year={1985}, volume={16}, pages={1005-1012} }
The microstructure of rapidly solidified Al−Mn alloys containing 18 to 25.3 wt pct Mn was studied by transmission electron microscopy. One of the phases found in the microstructure exhibits icosahedral symmetry manifested in electron diffraction patterns having five-fold symmetry. A new structural concept is proposed to account for the observed electron diffraction patterns. The structure is assumed to be composed of many connected polyhedra. Although not forming a regular lattice, such…
268 Citations
Morphology and microstructure of Al−Li−Cu quasicrystals
- Materials Science
- 1989
Solidification microstructure of the stable icosahedral Al5.1 Li3Cu alloy has been studied by scanning electron microscopy. Free surface solidification morphology was found to consist of heavily…
Microstructural characterization of a rapidly solidified Al-Mg-Mn powder alloy
- Materials Science
- 1987
A detailed investigation concerning the microstructural characteristics of a rapidly solidified Al-Mg-Mn powder alloy has been carried out. A range of microstructures was observed in the atomized…
An electron-microscopic investigation of the transformation behaviour of Al6Mg4Cu quasi-crystalline alloy☆
- Materials Science
- 1988
Development of quasicrystal morphology in gas-atomized icosahedral-phase-strengthened aluminum alloy powders
- Materials ScienceMaterials & Design
- 2019
Icosahedral and decagonal phase formation in Al-Mn alloys
- Materials Science
- 1986
The solidification conditions leading to the formation of the icosahedral phase in Al-Mn alloys have been investigated, using samples prepared by melt spinning and electron beam surface melting. It…
Quasicrystalline-to-crystalline transformation in rapidly solidified Mg32(Al, Zn)49
- Materials Science
- 1988
Abstract A ternary Mg-Al-Zn alloy, corresponding to the Mg32(Al, Zn)49 composition, was rapidly solidified from the liquid state by melt spinning. The as-solidified structure showed nodular…
The substructure of quasicrystalline Al‐Mn alloy observed by TEM
- Materials Science
- 1987
The morphology of the icosahedral phase in Al86Mn14 alloy has been observed as flower‐like and of granular shape by TEM. These two kinds of morphologies may be regarded as the different sections of a…
The nature of the topological disorder in the rapidly quenched Al73Mn21Si6 icosahedral phase
- Materials Science
- 1989
Abstract A rapidly solidified Al73Mn21Si6 icosahedral alloy has been studied by X-ray powder diffraction and scanning and transmission electron microscopy. AH reflections were found to fit the…
A non-icosahedral T2 (Al6Li3Cu) phase
- Materials Science
- 1988
Abstract T2 (Al6Li3Cu) precipitates formed by solid-state reactions in an Al-Li-Cu ternary alloy have been studied by convergent-beam electron diffraction (CBED). Asymmetries observed in the CBED…
References
SHOWING 1-7 OF 7 REFERENCES
Crystallography of decahedral and icosahedral particles: I. Geometry of twinning
- Chemistry, Materials Science
- 1979
Precipitation in rapidly solidified Al-Mn alloys
- Materials Science
- 1984
Precipitation at 450 °C was studied in melt-spun ribbons containing up to 15 wt pct Mn in solid solution in Al. The as-spun ribbons were microsegregation-free at compositions up to 5 wt pct Mn, but…
Crystallography of decahedral and icosahedral particles. II - High symmetry orientations
- Chemistry, Materials Science
- 1979
Microdiffraction and lattice resolution studies of fivefold symmetry gold particles
- Chemistry
- 1984
The structure of fivefold particles is studied using single particle diffraction in a STEM microscope and lattice images. The results show excellent agreement with the rhombohedral and body‐centered…