HRTEM Study of Precipitates in Al-Mg-Si and Al-Mg-Ge Alloys

Kenji Matsuda; Susumu Ikeno; Teruyoshi Munekata

doi:10.4028/www.scientific.net/MSF.519-521.221

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Improvement of Bake-Hardening Response of Al-Mg-Cu Alloys by Means of Nanocluster Assist Processing (NCAP) Technique
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HRTEM Study of Precipitates in Al-Mg-Si and Al-Mg-Ge Alloys
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The Effect of Composition and Temperature on the Ageing Response of some Dilute 6xxx Series Alloys
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Precipitation Behaviour of Mg and Si at RT in Pre-Aged Al-Mg-Si Alloys
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The Effect of Intermediate Storage Temperature and Time on the Age Hardening Response of Al-Mg-Si Alloys
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3DAP Characterization and Thermal Stability of Nano-Scale Clusters in Al-Mg-Si Alloys
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HomeMaterials Science ForumMaterials Science Forum Vols. 519-521HRTEM Study of Precipitates in Al-Mg-Si and...

HRTEM Study of Precipitates in Al-Mg-Si and Al-Mg-Ge Alloys

Abstract:

In this work, the crystal structure of the rod-shaped precipitate in aged Al -1.0 mass% Mg2Ge alloy at 523 K has been investigated by high resolution transmission electron microscopy (HRTEM), electron diffraction technique and energy dispersive X-ray spectroscopy (EDS). The rod-shaped precipitate in its alloy has showed the similar arrangement of bright dots in its HRTEM images and selected area diffraction pattern (SADP) to those of the b’-phase in Al-Mg2Si alloy. But a lattice constant of this precipitate in Al-Mg2Ge alloy was slightly larger than the b’-phase in Al-Mg2Si alloy. In addition, the new metastable phase has been found out in Al-Mg-Ge alloy.

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Periodical:

Materials Science Forum (Volumes 519-521)

Pages:

221-226

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.519-521.221

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Online since:

July 2006

Authors:

Kenji Matsuda, Susumu Ikeno, Teruyoshi Munekata

Keywords:

Al-Mg-Ge, Al-Mg-Si, High Resolution Transmission Electron Microscopy, Precipitation

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References

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