Fission-fusion correlations for swelling and microstructure in stainless steels [electronic resource] : effect of the helium-to-displacement-per-atom ratio
- Published
- Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 1981.
- Physical Description
- Pages: 15 : digital, PDF file
- Additional Creators
- Oak Ridge National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
Access Online
- Restrictions on Access
- Free-to-read Unrestricted online access
- Summary
- The initial irradiated structural materials data base for fusion applications will be developed in fission reactors. Hence, this data may need to be adjusted using physically-based procedures to represent behavior in fusion environments, viz. - fission-fusion correlations. Such correlation should reflect a sound mechanistic understanding, and be verified in facilities which most closely simulate fusion conditions. In this paper we review the effects of only one of a number of potentially significant damage variables, the helium to displacement per atom ratio, on microstructural evolution in austenitic stainless steels. Dual-ion and helium preinjection data are analyzed to provide mechanistic guidance; these results appear to be qualitatively consistent with a more detailed comparison made between fast (EBR-II) and mixed (HFIR) spectrum neutron data for a single heat of 20% cold-worked 316 stainless steel. These two fission environments bound fusion (He/dpa ratios. A model calibrated to the fission reactor data is used to extrapolate to fusion conditions. Both the theory and broad empirical observation suggest that helium to dpa ratios have both a qualitative and quantitative influence on microstructural evolution; and that the very high and low ratios found in HFIR and EBR-II may not result in behavior which brackets intermediate fusion conditions.
- Report Numbers
- E 1.99:conf-810831-98-draft
conf-810831-98-draft - Subject(s)
- Other Subject(s)
- Stainless Steel-316
- Microstructure
- Physical Radiation Effects
- Swelling
- Displacement Rates
- Fission
- Helium
- Neutron Reactions
- Test Reactors
- Thermonuclear Reactor Materials
- Alloys
- Baryon Reactions
- Chromium Alloys
- Chromium Steels
- Chromium-Nickel Steels
- Corrosion Resistant Alloys
- Crystal Structure
- Elements
- Fluids
- Gases
- Hadron Reactions
- Heat Resistant Materials
- Heat Resisting Alloys
- Iron Alloys
- Iron Base Alloys
- Materials
- Molybdenum Alloys
- Nickel Alloys
- Nonmetals
- Nuclear Reactions
- Nucleon Reactions
- Radiation Effects
- Rare Gases
- Reactors
- Research And Test Reactors
- Stainless Steels
- Steels
- Note
- Published through SciTech Connect.
01/01/1981.
"conf-810831-98-draft"
"DE82020938"
Fusion reactor materials meeting, Seattle, WA, USA, 9 Aug 1981.
Spitznagel, J.A.; Odette, G.R.; Maziaz, P.J.
California Univ., Santa Barbara (USA) - Funding Information
- W-7405-ENG-26
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