Changes in near-surface microstructure of metallic limiters following one year of service in Doublet III [electronic resource].
- Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 1981.
- Physical Description:
- Pages: 7 : digital, PDF file
- Additional Creators:
- United States. Department of Energy. Office of Scientific and Technical Information
- The structural alloys Ta-10W, Mo, and Inconel X-750 were used for plasma limiters during the 3-MW ohmic heating experiments of the Doublet III tokamak. Post-service examinations of these limiters are reviewed. Near-surface melting, cracking, and microstructural changes are shown and discussed. During III service, elements from other metallic components were transported by the plasma and deposited on the limiter surface; significantly, high concentrations of Ni, Fe, Mo, and C were detected in the regions found to be microcracked in the Ta-10W. Observations and analyses are made that are relevant to the design of limiter and armor components for larger tokamaks.
- Published through SciTech Connect.
Fusion reactor materials meeting, Seattle, WA, USA, 9 Aug 1981.
Trester, P.W.; Sabado, M.M.; Sevier, D.L.
General Atomic Co., San Diego, CA (USA)
- Funding Information:
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