Si promotes nano-clusters and α phase separation in early-stage neutron irradiated low activation ferritic/martensitic steel
Source abstract
Abstract
Two types of 9Cr-2W steels with one by an addition of 0.1 wt. % Si were neutron irradiated at 290°C to 0.1 dpa, and studied by positron annihilation spectroscopy. The addition of Si brought about the formation of Si-containing nanoclusters and an α phase separation under irradiation. Isochronal annealing indicates that the nano-clusters can survive and be promoted up to 450°C and recovered at 500°C. Our results suggest that even a trace Si can significantly influence the microstructural evolution under irradiation. The nano-clusters/precipitates are irradiation enhanced by the generation of interstitial clusters in the cascade process.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Ion-surface interactions and analysis · Fusion materials and technologies · Microstructure and mechanical properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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