POSTIRRADIATION CHARPY-V AND DYNAMIC TEAR SHELF LEVEL PERFORMANCE OF 12-IN. THICK A533-B PLATES AND WELD METAL.
NAVAL RESEARCH LAB WASHINGTON D C
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Charpy-V Cv and dynamic tear DT test comparisons at shelf level temperatures were developed for the irradiated condition of two 12-in.-thick A533-B steel plates and a submerged arc weld deposit. Materials for this investigation were provided by the U. S. Atomic Energy Commissions Heavy Section Steel Technology HSST Program. Individual plates were identified as HSST Plates Nos. 01 and 02 the weld prepared by Combustion Engineering was identified as weld 50. Low temperature 300F, 149C and elevated temperature 550F, 288C irradiations were conducted. Fluences for the eight irradiation experiments ranged from 2 to 3 x 10 to the 19th power nsq cm 1 MeV. Experimental results indicate that the percent reduction in C sub v shelf energy is comparable to the percent reduction in DT shelf energyC sub v shelf energy ratio for an individual material are retained under irradiation. Observations are in agreement with recent findings for A543 and other A533 steel plates. Ratio retention would permit the derivation of an approximate postirradiation DT shelf energy from postirradiation C sub v shelf energy for fracture safety analyses. Author
- Metallurgy and Metallography
- Fission Reactor Materials