Investigation of ferritic-martensitic steels in flowing Pb-17Li
- Authors
- Publication Date
- Jan 01, 2000
- Source
- OpenGrey Repository
- Keywords
- Language
- English
- License
- Unknown
Abstract
The aim of this work was focussed on trying to understand the corrosion mechanism of potential structural materials with the eutectic melt Pb-17Li. Long-term exposure tests have therefore been made on the steels MANET, F82H-mod and optifer IVa in the forced convection Pb-17Li loop PICOLO up to 10000 h. It was found that two processes are responsible for the corrosive attack: firstly the dissolution of the oxide scale during the so-called incubation period, which is dependent on temperature and on flow velocity of the melt. Secondly, the main corrosion attack in which Fe is strongly depleted from the steel resulted in a porous low adherent layer on the surface of the steels in which Pb-17Li could penetrate easily. Unfortunately this layer has not the capability of protecting the steel for further corrosion attack but is eroded away by the flowing eutectic melt. (orig.) / 10 refs. / Available from TIB Hannover: ZA 5141(6454) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische Informationsbibliothek / SIGLE / DE / Germany
