Abstract
The deformation microstructures of oxygen-free
high-conductivity (OFHC) copper were examined by
transmission electron microscopy (TEM) following
in-reactor and post-irradiation slow strain rate tensile
tests. The TEM results suggest that the main modes of
deformation differ between all examined cases. Plastic
deformation appeared predominantly localized in the
defect-free cleared channels following post-irradiation
testing and hardly any dislocations were seen outside the
channels. The microstructures following in-reactor tests
were characterized by a small amount of cleared channels
and a distinct dislocation density within the matrix.
However, the dislocations observed following in-reactor
testing did not seem to interact with each other, whereas
that was the main mode of deformation in the
non-irradiated reference sample. The possible mechanisms
of plastic deformation are discussed based on the
experimental results
Original language | English |
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Pages (from-to) | S821-S825 |
Journal | Journal of Nuclear Materials |
Volume | 442 |
Issue number | 1-3 suppl.1 |
DOIs | |
Publication status | Published - 2013 |
MoE publication type | A1 Journal article-refereed |
Event | Fifteenth International Conference on Fusion Reactor Materials - Charleston, United States Duration: 16 Oct 2011 → 22 Oct 2011 |