Activation characteristics of different steel alloys proposed for near-term fusion reactors
Analyses have been made for different structural alloys proposed for the International Thermonuclear Experimental Reactor (ITER). Candidate alloys include austenitic steels stabilized with nickel (NiSS) or manganese (MnSS). The radioactivity, the decay heat, and the waste disposal rating of each alloy have been calculated for the inboard shield of the ITER design option utilizing water cooled solid breeder blanket. The results show, for the 55 cm inboard shield and after 3 MW.yr/m2 fluence, that the long term activation problems, e.g., radioactive waste, of the MnSS are much less than that of the NiSS. All the MnSS alloys considered are qualified as Class C or better low level waste. Most of the NiSS alloys are not qualified for near surface burial. However, the short term decay heat generation rate for the MnSS is much higher than that of the NiSS. 6 refs., 8 figs., 2 tabs.
- Research Organization:
- Argonne National Lab., IL (USA)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 6757794
- Report Number(s):
- CONF-881031-17; ON: DE89000593; TRN: 88-036478
- Resource Relation:
- Conference: 8. topical meeting on technology of fusion energy, Salt Lake City, UT, USA, 9 Oct 1988; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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36 MATERIALS SCIENCE
THERMONUCLEAR REACTOR MATERIALS
PHYSICAL RADIATION EFFECTS
ACTIVATION ENERGY
AUSTENITIC STEELS
CHEMICAL COMPOSITION
ENERGY DEPENDENCE
NEUTRON FLUX
RADIOACTIVE WASTES
SHIELDING
WASTE DISPOSAL
ALLOYS
ENERGY
IRON ALLOYS
IRON BASE ALLOYS
MANAGEMENT
MATERIALS
RADIATION EFFECTS
RADIATION FLUX
RADIOACTIVE MATERIALS
STEELS
WASTE MANAGEMENT
WASTES
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