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Panelists discuss U.S. path to criticality in ANS webinar
The American Nuclear Society recently hosted a panel discussion featuring prominent figures from the nuclear sector who discussed the industry’s ongoing push for criticality.
Yasir Arafat, chief technical officer of Aalo Atomics; Jordan Bramble, CEO of Antares Nuclear; and Rita Baranwal, chief nuclear officer of Radiant Industries, participated in the discussion and covered their recent progress in the Department of Energy’s Reactor Pilot Program. Nader Satvat, director of nuclear systems design at Kairos Power, gave an update on the company’s ongoing demonstration projects taking place outside of the landscape of DOE authorization.
Glen R. Edwards, Kent A. Jones, Steven F. Halvorson
Fusion Science and Technology | Volume 10 | Number 2 | September 1986 | Pages 243-252
Technical Paper | Blanket Engineering | doi.org/10.13182/FST86-A24976
Articles are hosted by Taylor and Francis Online.
Recent inertial confinement fusion reactor designs utilize liquid 17Li-83Pb blankets to absorb the neutron and thermal fluxes. One of the crucial concerns of these designs is the compatibility of structural alloys with this lithium-lead alloy, especially because of this liquid's possible propensity for embrittling materials. Current candidate pressure vessel steels for liquid lithium or lithium-lead containment are the Cr-Mo steels such as HT-9 (12 Cr-1 Mo), 2.25 Cr-1 Mo, and niobium-stabilized 2.25 Cr-1 Mo. This investigation was therefore aimed at characterizing the lithium-lead embrittlement susceptibility of the weldments of these steels subjected to a 17Li-83Pb liquid. Results of these embrittlement studies have shown that as-welded heat-affected zones of low phosphorus and sulfur 2.25 Cr-1 Mo, niobium-stabilized 2.25 Cr-1 Mo, and HT-9 steels all exhibit liquid-metal-induced embrittlement susceptibility when subjected to a 17Li-83Pb liquid. The embrittlement, however, was found to be very dependent on post-weld heat treatment. Normally extensive post-weld heat treatments greatly ameliorate the 17Li-83Pb embrittlement, rendering these steels acceptable for 17Li-83Pb containment.