Actions for Effect of boron on post irradiation tensile properties of reduced activation ferritic steel (F-82H) irradiated in HFIR [electronic resource].

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Effect of boron on post irradiation tensile properties of reduced activation ferritic steel (F-82H) irradiated in HFIR [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 1994.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
15 pages : digital, PDF file
Additional Creators
Oak Ridge National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Reduced activation ferritic/martensitic steel, F-82H (Fe-8Cr-2W-V-Ta), was irradiated in the High Flux Isotope Reactor (HFIR) to doses between 11 and 34 dpa at 400 and 500 C. Post irradiation tensile tests were performed at the nominal irradiation temperature in vacuum. Some specimens included ¹°B or natural boron (nB) to estimate the helium effect on tensile properties. Tensile properties including the 0.2% offset yield stress, the ultimate tensile strength, the uniform elongation and the total elongation were measured. The tensile properties were not dependent on helium content in specimens irradiated to 34 dpa, however ¹°B-doped specimens with the highest levels of helium showed slightly higher yield strength and less ductility than boron-free specimens. Strength appears to go through a peak, and ductility through a trough at about 11 dpa. The irradiation to more than 21 dpa reduced the strength and increased the elongation to the unirradiated levels. Ferritic steels are one of the candidate alloys for nuclear fusion reactors because of their good thermophysical properties, their superior swelling resistance, and the low corrosion rate in contact with potential breeder and coolant materials.
Report Numbers
E 1.99:conf-940657--11
conf-940657--11
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Note
Published through SciTech Connect.
12/31/1994.
"conf-940657--11"
"DE96005426"
17. symposium on effects of radiation on materials, Sun Valley, ID (United States), 20-23 Jun 1994.
Pawel, J.E.; Hishinuma, Akimichi; Suzuki, Masahide; Shiba, Kiyoyuki.
Funding Information
AC05-84OR21400
View MARC record | catkey: 14745334