Spectral effects in low-dose fission and fusion neutron irradiated metals and alloys
Flat miniature tensile specimens were irradiated to neutron fluences up to 9 x 10/sup 22/ n/m/sup 2/ in the RTNS-II and in the Omega West Reactor. Specimen temperatures were the same in both environments, with runs being made at both 90/sup 0/C and 290/sup 0/C. The results of tensile tests on AISI 316 stainless steel, A302B pressure vessel steel and pure copper are reported here. The radiation-induced changes in yield strength as a function of neutron dose in each spectrum are compared. The data for 316 stainless steel correlate well on the basis of displacements per atom (dpa), while those for copper and A302B do not. In copper the ratio of fission dpa to 14 MeV neutron dpa for a given yield stress change is about three to one. In A302B pressure vessel steel this ratio is more than three at lower fluences, but the yield stress data for fission and 14 MeV neutron-irradiated A302B steel appears to coalesce or intersect at the higher fluences.
- Research Organization:
- Hanford Engineering Development Lab., Richland, WA (USA)
- DOE Contract Number:
- AC06-76FF02170
- OSTI ID:
- 6986418
- Report Number(s):
- HEDL-SA-3428-FP; CONF-860421-70; ON: DE87005459
- Resource Relation:
- Conference: 2. international conference on fusion reactor materials (ICFRM-2), Chicago, IL, USA, 13 Apr 1986; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
COPPER
PHYSICAL RADIATION EFFECTS
TENSILE PROPERTIES
STAINLESS STEEL-316
STAINLESS STEELS
IRRADIATION
LOW TEMPERATURE
NEUTRON REACTIONS
STRESSES
ALLOYS
BARYON REACTIONS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
CORROSION RESISTANT ALLOYS
ELEMENTS
HADRON REACTIONS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
MECHANICAL PROPERTIES
METALS
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NUCLEAR REACTIONS
NUCLEON REACTIONS
RADIATION EFFECTS
STEELS
TRANSITION ELEMENTS
360103* - Metals & Alloys- Mechanical Properties
700209 - Fusion Power Plant Technology- Component Development & Materials Testing