| Numéro |
J. Phys. Colloques
Volume 47, Numéro C7, Novembre 1986
33rd International Field Emission Symposium / 33ème Symposium International d'Emission de Champ
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| Page(s) | C7-295 - C7-300 | |
| DOI | https://doi.org/10.1051/jphyscol:1986751 | |
33rd International Field Emission Symposium / 33ème Symposium International d'Emission de Champ
J. Phys. Colloques 47 (1986) C7-295-C7-300
DOI: 10.1051/jphyscol:1986751
1 Institut für Metallphysik, Universität Göttingen, D-3400 Göttingen, F.R.G.
2 Sonderforschungsbereich 126, D-3392 Clausthal-Zellerfeld, (Göttingen), F.R.G.
J. Phys. Colloques 47 (1986) C7-295-C7-300
DOI: 10.1051/jphyscol:1986751
ORDERING IN METALLIC ALLOYS BY FIM-ATOM PROBE TECHNIQUES
R. GRÜNE1, 2, A. HÜTTEN1, 2 et L. v. ALVENSLEBEN1, 21 Institut für Metallphysik, Universität Göttingen, D-3400 Göttingen, F.R.G.
2 Sonderforschungsbereich 126, D-3392 Clausthal-Zellerfeld, (Göttingen), F.R.G.
Abstract
The ordering of Ni-12 at% Ti and AlNiCo 5 has been investigated using Field Ion Microscopy (FIM) and Atom Probe (AP) techniques. Ni-12 at% Ti orders at 550 °C during the spinodal decomposition resulting in a L12-structure for the Ti enriched areas. The homogenized state of AlNiCo 5 shows a state of order between Al and Ni before spinodal decomposition sets in at lower aging temperatures. The results are compared with those of a stoichiometric Ni3Al specimen which was used as an ordered "model alloy".