Effect of helium on the irradiation damage behaviour in HAZ of low activation Fe-Cr-Mn (W, V) alloy with higher performance
Creators
- 1. School of Materials Science and Engineering, Beijing Science and Technology Univ., Beijing (China)
- 2. Center for Advanced Research of Energy Technology, Hokkaido University (Japan)
Description
The effect of helium on the irradiation damage characteristics and radiation induced segregation at grain boundaries in the welding heat affected zone (HAZ) of Fe-Cr-Mn(W, V) alloy for fusion-fission mixed reactor was investigated by super-high voltage electron microscopy connected with a high energy ion accelerator; Experimental results show that the existence of helium enhanced the density of dislocation loop during initial irradiation stage and promoted formation of void nuclei and increase of void swelling, effectively suppressed concentration decrease of solute atoms Cr, Mn at grain boundaries meanwhile the concentration change of Ni, V, Si, W at grain boundary is also suppressed. The HAZ of Fe-Cr-Mn (W, V) alloy has superior resistance to irradiation damage under helium atmosphere
Additional details
Publishing Information
- Journal Title
- Chinese Journal of Nuclear Science and Engineering
- Journal Volume
- 23
- Journal Issue
- 1
- Journal Page Range
- p. 61-67
- ISSN
- 0258-0918
INIS
- Country of Publication
- China
- Country of Input or Organization
- China
- INIS RN
- 34053692
- Subject category
- S36: MATERIALS SCIENCE; S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Descriptors DEI
- CHROMIUM ALLOYS; CONCENTRATION RATIO; ELECTRONS; GRAIN BOUNDARIES; HEAT AFFECTED ZONE; HELIUM IONS; HYBRID REACTORS; IRON BASE ALLOYS; MANGANESE ALLOYS; PHYSICAL RADIATION EFFECTS; SEGREGATION; SWELLING; THERMONUCLEAR REACTOR MATERIALS; TUNGSTEN ALLOYS; VANADIUM ADDITIONS; WELDING
- Descriptors DEC
- ALLOYS; CHARGED PARTICLES; DEFORMATION; ELEMENTARY PARTICLES; FABRICATION; FERMIONS; IONS; IRON ALLOYS; JOINING; LEPTONS; MATERIALS; MICROSTRUCTURE; RADIATION EFFECTS; TRANSITION ELEMENT ALLOYS; VANADIUM ALLOYS; ZONES