HRTEM Study of Precipitates in Al-Mg-Si and Al-Mg-Ge Alloys |
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| Journal | Materials Science Forum (Volumes 519 - 521) |
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| Volume | Aluminium Alloys 2006 - ICAA10 |
| Edited by | W.J. Poole, M.A. Wells and D.J. Lloyd |
| Pages | 221-226 |
| DOI | 10.4028/www.scientific.net/MSF.519-521.221 |
| Citation | Kenji Matsuda et al., 2006, Materials Science Forum, 519-521, 221 |
| Online since | July, 2006 |
| Authors | Kenji Matsuda, Susumu Ikeno, Teruyoshi Munekata |
| Keywords | Al-Mg-Ge, Al-Mg-Si, High Resolution Transmission Electron Microscopy, Precipitation |
| 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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