EDS-TEM measurements of precipitates and matrix in equilibrium (alpha+beta) Zr-1Nb alloys with Ta addition

The Zr-1.05Nb, Zr-0.85Nb-0.20Ta and Zr-0.85Nb-0.40Ta alloys with an alpha plus beta equilibrium microstructure (annealing 570 °C for 3840 h) were measured by EDS-TEM. The measurements of beta phase (precipitates) was carried out in carbon extraction replicas and alpha phase (matrix) was carried out in thin films. The EDS-TEM spectra were obtained with a field emission TEM FEI Tecnai F20 G2 (FEG) operated at 200 kV with an EDAX EDS detector, take-off angle 14.8°, sample rotation 15° and data collected from a focused spot of 15 nm diameter (spot3). The EDS-TEM measurements were made by Dra. Eugenia Zelaya in the Centro Atómico Bariloche, Comisión Nacional de Energía Atómica, Argentina. The group of measurements in this dataset will be the main part of a manuscript written by P.A. Ferreirós, P.R. Alonso, D.P. Quirós, E. Zelaya and G.H. Rubiolo,