Liu, Q orcid.org/0000-0002-1132-9392, Wang, C, Qian, J et al. (1 more author) (2023) Investigation of the early stage corrosion characteristics of molten (nitrate) salt – oxide – metal interfaces, and the links to interfacial thermo-mechanical stress. Corrosion Science, 220. 111282. ISSN 0010-938X
Abstract
This paper investigates the early-stage corrosion behaviour of 4 alloys in solar-salt under air and argon at elevated temperatures for 7 days. The multi-layered interfacial corrosion oxides were observed to consist of an inner Cr-rich oxide and an outer Na/Fe-rich oxide. The inner tensile stress between the interfacial oxide layers were observed to correlate to the spallation of the porous outer Na/Fe-rich oxide layer. The combination of chemical aggression of molten salt, high temperature and argon atmospheres, acts in synergy to increase the kinetics of formation of Na/Fe–rich outer oxide layer, and it’s tendency to degrade by spallation due to an inner tensile stress.
Metadata
Item Type: | Article |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | © 2023 Elsevier Ltd. This is an author produced version of an article published in Corrosion Science. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Molten salt; Thermal stress; Stainless Steels; Nano-indentation; Multi-corrosion layer; Spallation |
Dates: |
|
Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Mechanical Engineering (Leeds) > Institute of Functional Surfaces (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 25 May 2023 10:02 |
Last Modified: | 19 May 2024 00:13 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.corsci.2023.111282 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:199415 |