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November 9–12, 2025
Washington, DC|Washington Hilton
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ANS and the U.K.’s NI announce reciprocal membership agreement
With President Trump on a state visit to the U.K., in part to sign a landmark new agreement on U.S.-U.K. nuclear collaboration, a flurry of transatlantic partnerships and deals bridging the countries’ nuclear sectors have been announced.
The American Nuclear Society is taking an active role in this bridge-building by forming a reciprocal membership agreement with the U.K.’s Nuclear Institute.
K. Natesan, O. K. Chopra, T. F. Kassner
Nuclear Technology | Volume 28 | Number 3 | March 1976 | Pages 441-451
Technical Paper | Reactor | doi.org/10.13182/NT76-A31525
Articles are hosted by Taylor and Francis Online.
Kinetics of decarburization of Fe—2¼ wt% Cr— 1 wt% Mo steel in a sodium environment has been studied at temperatures between 480 and 650°C in the normalized and normalized-tempered conditions. Carbon concentration-distance profiles were obtained as a function of sodium exposure time and decarburization rate constants were evaluated. It was found that the heat treatment of the steel had no effect on the decarburization behavior at 650ºC; however, at lower temperatures, the normalized steel was found to decarburize significantly faster than the steel in the normalized-tempered condition. Microstructural examinations of specimens exposed at 650°C revealed that MeC was the stable carbide, and the transformation of M23C6 to M6C was accelerated by the decarburization process. In specimens exposed at 480°C, the stable carbides were found to be M7C3, Fe3C, and M2C. The results also showed that the steel would decarburize to a certain carbon level that corresponds to a stable carbide structure at each temperature, and any additional decarburization will be controlled by the dissolution rate of the carbide phases in the ferrite matrix.
