ADS - candidate materials compatibility with Liquid Metal in neutron irradiation environment

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Abstract

Lead-bismuth eutectic (LBE) liquid metal is selected to be the main coolant as well as the spallation neutron source for the future demonstrator Accelerator Driven System (ADS) within the European FP6, EUROTRANSproject and the SCK•CEN project MYRRHA. The compatibility of the coolant with the candidate structural materials is of extreme importance for the mechanical and chemical integrity of the system. This project aims at addressing the possible liquid metal embrittlement (LME) occurrence between the ADS candidate materials and the liquid metal especially in neutron irradiation environment. By performing SSRT tests, both in liquid LBE and in inert environment on both irradiated and non-active specimens, the most important degradation parameters for the ADS installation are assessed and possible synergies can be identified. Preliminary results on non-active material show that the native oxide layer protects the material from LME but stress concentrators and surface defects can increase its susceptibility to LME. The irradiation campaign of material in contact with liquid LBE is currently ongoing in the Belgian BR2 reactor. The setup of the irradiation experiment will be briefly explained.

Details

Original languageEnglish
Title of host publicationInternational Youth Conference on Energetics 2007 (IYCE'07) Proceedings
Place of PublicationBudapest, Hungary
Volume1
Publication statusPublished - Jun 2007
EventIYCE 2007 - International Youth Conference on Energetics - Budapest University of Technology and Economics, Student Association of Energy, Budapest, Hungary
Duration: 30 May 20072 Jun 2007

Conference

ConferenceIYCE 2007 - International Youth Conference on Energetics
Country/TerritoryHungary
CityBudapest
Period2007-05-302007-06-02

Keywords

  • Accelerator driven system, liquid lead bismuth eutectic, neutron irradiation, structural steels

ID: 194123