Solute distribution in annealed Zircaloy-2 and Zr-2.5Nb

Electron probe microanalysis has been applied to determine the temperature dependence of solute levels, particularly Fe, in the matrix of large-grained, 10–40 μm, Zircaloy-2 (Zy) and Zr-2.5Nb (ZN). The Fe levels found in the α-phase of both alloys below 600°C are high (≈ 70 at. ppm), in terms of rec...

Full description

Saved in:
Bibliographic Details
Published in:Journal of nuclear materials 1994, Vol.208 (1), p.159-165
Main Authors: Zou, H., Hood, G.M., Roy, J.A., Packwood, R.H., Weatherall, V.
Format: Article
Language:English
Subjects:
Applied sciences
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Materials science
Metals. Metallurgy
Phase diagrams and microstructures developed by solidification and solid-solid phase transformations
Physics
Precipitation
Solid-phase precipitation
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Electron probe microanalysis has been applied to determine the temperature dependence of solute levels, particularly Fe, in the matrix of large-grained, 10–40 μm, Zircaloy-2 (Zy) and Zr-2.5Nb (ZN). The Fe levels found in the α-phase of both alloys below 600°C are high (≈ 70 at. ppm), in terms of recently published solubilities of Fe in α-Zr. X-ray mapping shows that Fe, Cr and Ni in Zy are concentrated in grain boundary precipitates and that Fe and Nb in ZN are concentrated at the β (or transformed-β) regions. The development of the α-phase and associated solute-enrichment of the transforming β-phase during annealing are followed as functions of heat treatment by metallography and X-ray mapping.
ISSN:0022-3115
1873-4820
DOI:10.1016/0022-3115(94)90207-0