High resolution energy-filtering transmission electron microscopy for equilibrium {beta}-phase in an Al-Mg-Si alloy
- Toyama Univ. (Japan)
- Toyama Prefectural Univ. (Japan). Research Inst. of Tech.
- Tokyo Inst. of Tech. (Japan)
High-resolution transmission electron microscopy (HRTEM) has become a popular technique to clarify the precipitation behavior of aluminum alloys. This technique can be used to obtain information on the periodicity of the crystal structure in nano-scaled regions. The chemical composition in such a nano-ordered region is best determined by another method, e.g., energy dispersive X-ray spectroscopy (EDX). However, energy-filtering transmission electron microscopy (EFTEM) succeeds in combining HRTEM and compositional information through electron energy loss spectroscopy (EELS). Recent EFTEM studies have mainly reported on semiconductor device materials. No studies have been reported concerning the crystal structures of precipitates in Al-Mg-Si alloys by EFTEM. This study reports the separation of the lattice images of magnesium and silicon of the equilibrium {beta}-Mg{sub 2}Si phase in an Al-Mg-Si alloy using a new type of 400 kV-EFTEM.
- OSTI ID:
- 691344
- Journal Information:
- Scripta Materialia, Vol. 41, Issue 4; Other Information: PBD: 23 Jul 1999
- Country of Publication:
- United States
- Language:
- English
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