Arbeiter, F.

Ghidersa, B. E.

Gonzalez, Francisco Alberto Hernandez

Heger, Ph.

Krüssmann, R.

Nguyen, T.

Schlindwein, G.

Walter, M.

Weber, V.

Zhou, G.

English

KITopen

KIT – The Research University in the Helmholtz AssociationStudy the evolution of the corrosion layer of E97 when in contact with Li4SiO4 under blanket relevant atmosphereE97 Samples kept for 8, 16, 32, and 64 days at 550 °C in flowing helium with 0.1% hydrogenThe water content was monitored and kept as low as possibleInstitute of Neutron Physicsand Reactor TechnologyExperimental investigation of the corrosion behavior of Eurofer97 steel in contact with Lithium ceramic breeder pebbles under specific Helium Cooled Pebble Bed breeding zone atmosphereR. Krüssmann, B.-E. Ghidersa, M. Walter, T. Nguyen, V. Weber, Ph. Heger, F. Arbeiter, G. Schlindwein, G. Zhou, F. A. Hernández GonzalezISFNT 2023, September 11th – 15th, Las Palmas de Gran Canaria  regina.kruessmann@kit.eduDesign of the Sample HoldersSide walls made of E97 filterperforated by laser drilling(same as HCPB BU)Plate to screw in the samplesTop and bottom withopenings coveredwith X6Cr17 meshFilling procedureTo avoid contact between air moisture and hygroscopic pebbles, the filling is done in a glove box under Ar gasCompaction of the pebble bed on a shaker plateExperimental facility: HELOKA HEMATHelium cooled, low pressure loop (max. 4 bar), max. temp. 650 °C, max. flow 20 g/s, gas composition monitoring by a mass spectrometer, moisture sensorsResults8 days exposure time: contact spots 64 days exposure time: black oxidelayer formed on the samples64 days exposure time: walls still permeableThis work has been carried out within the framework of the EUROfusion Consortium, funded by the European Union via the Euratom Research and Training Programme (Grant Agreement No 101052200 — EUROfusion). Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or the European Commission. Neither the European Union nor the European Commission can be held responsible for them.As-received Simple exposuredevice (open loop)8d  16d  32d  64dHEMAT8d  16d  32d  64d  128d

Experimental investigation of the corrosion behavior of Eurofer97 steel in contact with Lithium ceramic breeder pebbles under specific Helium Cooled Pebble Bed breeding zone atmosphere

https://publikationen.bibliothek.kit.edu/1000163062/151500314

Experimental investigation of the corrosion behavior of Eurofer97 steel in contact with Lithium ceramic breeder pebbles under specific Helium Cooled Pebble Bed breeding zone atmosphere

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