| Numéro |
J. Phys. Colloques
Volume 47, Numéro C2, Mars 1986
32 nd International Field Emission Symposium / 32ème Symposium International d'Emission de Champ
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|---|---|---|
| Page(s) | C2-179 - C2-183 | |
| DOI | https://doi.org/10.1051/jphyscol:1986226 | |
32 nd International Field Emission Symposium / 32ème Symposium International d'Emission de Champ
J. Phys. Colloques 47 (1986) C2-179-C2-183
DOI: 10.1051/jphyscol:1986226
1 The Institute for Solid State Physics, The University of Tokyo, Tokyo, Japan
2 Department of Metallurgy, Kyoto University, Kyoto, Japan
J. Phys. Colloques 47 (1986) C2-179-C2-183
DOI: 10.1051/jphyscol:1986226
MICROSCOPIC STRUCTURES OF METASTABLE PHASES IN Al-Ag BINARY ALLOYS
T. SAKURAI1, A. JIMBO1, T. HASHIZUME1, A. SAKAI1, K. OSAMURA2 et T. NAKAMURA21 The Institute for Solid State Physics, The University of Tokyo, Tokyo, Japan
2 Department of Metallurgy, Kyoto University, Kyoto, Japan
Abstract
Morphology and chemical composition of metastable phases in an Al-5.72at% Ag alloy have been investigated by means of atom-probe field ion microscopy. The η-G. P. zone appears to have an ordered structure and its average solute concentration is 45.8at% Ag at 413 K. The ε-G. P. zone is spherical in shape and its composition is 35.7at% Ag. The γ metastable phase is plate-like precipitates lying on the {111} lattice planes, whose composition has been determined for the first time to be 33.3at% Ag.