Abstract
This study summarises the work performed to implementing the material properties for Hastelloy-N, of interest for GenIV MSRs, into the TRANSURANUS fuel performance code. The individual development of correlations on the basis of experimental data in the open literature, and the subsequent assessment with an independent dataset when available, also revealed the need for specific new experiments that have been pointed out. Following that, an integral assessment of the new code version was carried out as well. The simulation of a biaxial cladding burst tests from ORNL, with due consideration of the uncertainties and analysis by means of the new graphical output analysis tool TUPython for uncertainty and sensitivity analysis, provided encouraging results for the preliminary implementation of Hastelloy-N properties. The proposed set of material properties can therefore be readily implemented in any other fuel performance code.
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