Heavy-ion irradiations of Fe and Fe-Cr model alloys part 2: damage evolution in thin-foils at higher doses.
A study of heavy-ion damage in Fe and Fe-Cr alloys started in Part 1 1 was continued with an investigation of damage development in UHP Fe and Fe-8%Cr at higher doses up to 2 x 10{sup 19} ions m{sup -2} ({approx}13 dpa). In thin-foil irradiations with 150 keV Fe{sup +} ions at 300 C and room temperature (RT), more complex microstructures started to develop in thicker regions of the foils at doses greater than about 2 x 10{sup 18} ions m{sup -2}, apparently involving cooperative interaction, alignment and coalescence of smaller loops. First strings of loops all with the same 1/2 111 Burgers vectors formed. In UHP Fe irradiated at 300 C the damage then developed into colonies of resolvable interstitial loops with 1/2 111 Burgers vectors. By a dose of 2 x 10{sup 19} ions m{sup -2}, large (several hundred nanometer) finger-shaped loops with large shear components had developed by the growth and subsequent coalescence of smaller loops. Similar but finer-scale damage structures developed in UHP Fe irradiated at RT and in Fe-8%Cr irradiated at both RT and 300 C.
- Research Organization:
- Argonne National Laboratory (ANL)
- Sponsoring Organization:
- SC; UKAEA; European Commission
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 947538
- Report Number(s):
- ANL/MSD/JA-62353
- Journal Information:
- Philos. Mag., Journal Name: Philos. Mag. Journal Issue: 21 ; Jul. 21, 2008 Vol. 88; ISSN 1478-6435
- Country of Publication:
- United States
- Language:
- ENGLISH
Similar Records
Heavy-ion irradiations of Fe and Fe-Cr model alloys, part 1: damage evolution in thin-foils at lower doses.
Dynamic observations of heavy-ion damage in Fe and Fe-Cr alloys.
Journal Article
·
Thu Jul 31 00:00:00 EDT 2008
· Philos. Mag.
·
OSTI ID:947541
Dynamic observations of heavy-ion damage in Fe and Fe-Cr alloys.
Journal Article
·
Wed Dec 31 23:00:00 EST 2008
· J. Nucl. Mater.
·
OSTI ID:978987