Publication
Title
Dissolution corrosion of 316L austenitic stainless steels in contact with static liquid lead-bismuth eutectic (LBE) at 500 °C
Author
Abstract
This work addresses the dissolution corrosion behaviour of 316L austenitic stainless steels. For this purpose, solution-annealed and cold-deformed 316L steels were simultaneously exposed to oxygen-poor (<10−8 mass%) static liquid lead-bismuth eutectic (LBE) for 2533282 h at 500 °C. Corrosion was consistently more severe for the cold-drawn steels than the solution-annealed steel, indicating the importance of the steel thermomechanical state. The thickness of the dissolution-affected zone was non-uniform, and sites of locally-enhanced dissolution were occasionally observed. The progress of LBE dissolution attack was promoted by the interplay of certain steel microstructural features (grain boundaries, deformation twin laths, precipitates) with the dissolution corrosion process. The identified dissolution mechanisms were selective leaching leading to steel ferritization, and non-selective leaching; the latter was mainly observed in the solution-annealed steel. The maximum corrosion rate decreased with exposure time and was found to be inversely proportional to the depth of dissolution attack.
Language
English
Source (journal)
Journal of nuclear materials. - Amsterdam, 1959, currens
Publication
Amsterdam : North Holland , 2017
ISSN
0022-3115
DOI
10.1016/J.JNUCMAT.2017.04.004
Volume/pages
490 (2017) , p. 9-27
ISI
000403132300002
Full text (Publisher's DOI)
Full text (open access)
Full text (publisher's version - intranet only)
UAntwerpen
Faculty/Department
Research group
Project info
Transmission electron microscopy study on the liquid metal corrosion mechanisms of the 1.4970 austenitic stainless fuel cladding for MYRRHA.
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identifier
Creation 03.05.2017
Last edited 09.10.2023
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