| Issue |
J. Phys. Colloques
Volume 48, Number C6, Novembre 1987
34th International Field Emission Symposium / 34ème Symposium International d'Emission de Champ
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|---|---|---|
| Page(s) | C6-343 - C6-348 | |
| DOI | https://doi.org/10.1051/jphyscol:1987656 | |
34th International Field Emission Symposium / 34ème Symposium International d'Emission de Champ
J. Phys. Colloques 48 (1987) C6-343-C6-348
DOI: 10.1051/jphyscol:1987656
Institute of Solid State Physics, Nanjing University, Nanjing, P.R. China
J. Phys. Colloques 48 (1987) C6-343-C6-348
DOI: 10.1051/jphyscol:1987656
THE MICROSTRUCTURE OF THE PRECIPITATES IN A Ni-Be ALLOY, AS STUDIED WITH ATOM-PROBE FIM
Z.G. Liu, Y.N. Cao et D. FengInstitute of Solid State Physics, Nanjing University, Nanjing, P.R. China
Abstract
The microstructure, chemistry and morphology of a decomposed Ni-12at%Be alloy were investigated with atom-probe FIM. The β-precipitates were revealed to be disc shaped. The orientation relationship between the α-matrix ( A1 ) and the β-precipitates (B2) was determined. Atom-probe analyses showed that the interphase boundaries are very sharp. On the interfaces some ledge were revealed. The results were interpreted in terms of Gibbs-Wulff theorem and growth ledge mechanism.