| Numéro |
J. Phys. Colloques
Volume 50, Numéro C8, Novembre 1989
36th International Field Emission Symposium
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|---|---|---|
| Page(s) | C8-425 - C8-428 | |
| DOI | https://doi.org/10.1051/jphyscol:1989872 | |
36th International Field Emission Symposium
J. Phys. Colloques 50 (1989) C8-425-C8-428
DOI: 10.1051/jphyscol:1989872
1 Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6376, U.S.A.
2 Department of Metallurgy and Science of Materials, University of Oxford, GB-Oxford OX1 3PH, Great-Britain
J. Phys. Colloques 50 (1989) C8-425-C8-428
DOI: 10.1051/jphyscol:1989872
ATOM PROBE ANALYSIS OF β' PRECIPITATION IN A MODEL IRON-BASED Fe-Ni-Al-Mo SUPERALLOY
M.K. MILLER1 et M.G. HETHERINGTON21 Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6376, U.S.A.
2 Department of Metallurgy and Science of Materials, University of Oxford, GB-Oxford OX1 3PH, Great-Britain
Abstract
An atom probe field-ion microscopy study has been performed on model Fe-Ni-Al-Mo superalloys. The molybdenum and iron were found to partition preferentially to the α matrix and nickel and aluminum partition to the β' precipitates. The precipitates contained approximately 11% Fe. No evidence was found for molybdenum segregation to the precipitate-matrix interface.