Influence of alloying elements on grain-growth in Zr(Fe) and Cu(Fe) thin-films under in situ ion-irradiation.
Journal Article
·
· J. Nucl. Mater.
Thin-films of Zr(Fe) and Cu(Fe) were ion-irradiated in situ in a transmission electron microscope to study the influence of alloying elements on grain-growth. These two systems are different in that Zr-Fe has a negative heat of mixing and Cu-Fe a positive heat of mixing. Irradiations conducted at temperatures of 20-573 K showed precipitation in Zr(Fe) but not in Cu(Fe). The grain sizes increased monotonically with fluence and in both cases the pure metal exhibited more grain-growth than the alloy. A more drastic reduction of grain-growth rate was observed in Zr(Fe) (where precipitate drag occurred) than in Cu-Fe (where only solute drag was available). Zr(Fe) samples were also subjected to 1 MeV electron irradiation but no grain-growth was observed. The results are discussed in terms of the mechanisms of grain-growth under irradiation.
- Research Organization:
- Argonne National Laboratory (ANL)
- Sponsoring Organization:
- SC; Nuclear Engineering Education Research Program
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1006262
- Report Number(s):
- ANL/MSD/JA-68708
- Journal Information:
- J. Nucl. Mater., Journal Name: J. Nucl. Mater. Journal Issue: Aug. 2008 Vol. 382; ISSN 0022-3115
- Country of Publication:
- United States
- Language:
- ENGLISH
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