Microstructure of helium-implanted and proton-irradiated T91 ferritic/martensitic steel
Creators
- 1. University of Michigan, Department of Nuclear Engineering and Radiological Sciences, Ann Arbor, MI 48109 (United States)
Description
In the effort to understand the effect of helium on the irradiated microstructure, the ferritic/martensitic steel T91 was implanted to three helium concentrations of 720 appm, 1260 appm and 1800 appm. The alloy with and without helium pre-implantation was irradiated with 2.0 MeV protons to doses of 2.2 dpa, 7 dpa and 9.2 dpa at 450 oC. The irradiated microstructure, consisting of dislocation loops and bubbles, was characterized using transmission electron microscopy (TEM). Small bubbles were found in helium pre-implanted samples. No cavities were observed in irradiated samples without helium pre-implantation. Helium was found to promote swelling in T91. Irradiation may not be sufficient for cavity nucleation. However, when combined with helium pre-implantation, irradiation plays a role by assisting bubble growth and promoting swelling
Additional details
Identifiers
- DOI
- 10.1016/j.jnucmat.2007.03.118;
- PII
- S0022-3115(07)00412-6;
Publishing Information
- Journal Title
- Journal of Nuclear Materials
- Journal Volume
- 367-370
- Journal Page Range
- p. 440-445
- ISSN
- 0022-3115
- CODEN
- JNUMAM
Conference
- Title
- 12. international conference on fusion reactor materials
- Acronym
- ICFRM-12
- Dates
- 7-12 Dec 2005
- Place
- Santa Barbara, CA (United States)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39010212
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ATOMIC DISPLACEMENTS; BUBBLE GROWTH; BUBBLES; DISLOCATIONS; DOPED MATERIALS; FERRITIC STEELS; HELIUM; IRRADIATION; MARTENSITIC STEELS; MEV RANGE 01-10; MICROSTRUCTURE; PROTON BEAMS; SWELLING; TRANSMISSION ELECTRON MICROSCOPY
- Descriptors DEC
- ALLOYS; BEAMS; CARBON ADDITIONS; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; DEFORMATION; ELECTRON MICROSCOPY; ELEMENTS; ENERGY RANGE; FLUIDS; GASES; IRON ALLOYS; IRON BASE ALLOYS; LINE DEFECTS; MATERIALS; MEV RANGE; MICROSCOPY; NONMETALS; NUCLEON BEAMS; PARTICLE BEAMS; PHYSICAL RADIATION EFFECTS; RADIATION EFFECTS; RARE GASES; STEELS; TRANSITION ELEMENT ALLOYS
Optional Information
- Copyright
- Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.