Skip to Main content Skip to Navigation
Journal articles

Atomic scale analysis and phase separation understanding in a thermally aged Fe–20at.%Cr alloy

Abstract : Fe–Cr model alloys are of interest for understanding of phase separation in structural material for fusion or fission reactors. This motivated the quantitative study of the phase separation in a thermally aged (773 K) Fe–20 at.%Cr alloy using a Tomographic Atom Probe. It is shown that the chromium content in the α′ phase evolves with ageing time synonymous of a non-classical nucleation mechanism. The overlap of the nucleation and coarsening regimes is observed. A non-steady coarsening regime occurs before 1067 h of ageing. The solubility limit at 773 K is found to be 14 at.%. A maximum concentration of (83 ± 1) at.% is observed for the Cr-concentration in α′ precipitates.
Complete list of metadatas

https://hal-normandie-univ.archives-ouvertes.fr/hal-02107437
Contributor : Cristelle Pareige <>
Submitted on : Tuesday, April 23, 2019 - 4:29:08 PM
Last modification on : Wednesday, April 1, 2020 - 5:55:16 PM

Identifiers

Citation

S. Novy, Philippe Pareige, Cristelle Pareige. Atomic scale analysis and phase separation understanding in a thermally aged Fe–20at.%Cr alloy. Journal of Nuclear Materials, Elsevier, 2009, 384 (2), pp.96-102. ⟨10.1016/j.jnucmat.2008.10.008⟩. ⟨hal-02107437⟩

Share

Metrics

Record views

45