| 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) | C7-245 - C7-249 | |
| DOI | https://doi.org/10.1051/jphyscol:1986742 | |
33rd International Field Emission Symposium / 33ème Symposium International d'Emission de Champ
J. Phys. Colloques 47 (1986) C7-245-C7-249
DOI: 10.1051/jphyscol:1986742
Department of Materials Science and Engineering, University of Pittsburgh, Pittsburgh, PA 15261, U.S.A.
J. Phys. Colloques 47 (1986) C7-245-C7-249
DOI: 10.1051/jphyscol:1986742
A MICROSTRUCTURAL STUDY OF Co-20 wt.% Cr-10 wt.% Al USING APFIM AND TEM
M.G. BURKE et J.R. CAOLADepartment of Materials Science and Engineering, University of Pittsburgh, Pittsburgh, PA 15261, U.S.A.
Abstract
CoCrAl alloys, which are widely used as oxidation-resistant coatings on high temperature nicke1-base superalloy turbine components, have been examined by APFIM and AEM. The complex microstructures that are developed in these alloys are readily amenable to APFIM-TEM characterization. In this paper, we report microstructural and microchemical observations of the phases present in a Co-20 wt. % Cr-10 wt. % Al alloy (nominal composition) with particular emphasis on the combined TEM-APFIM identification of fine second phase precipitates.