Enhanced corrosion resistance of 2024 aluminum alloys with Cr2O3 thin layers by Atomic Layer Deposition
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F26%3A0198672" target="_blank" >RIV/00216305:26620/26:0198672 - isvavai.cz</a>
Alternative codes found
RIV/00216275:25310/25:39923276
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0010938X25004949" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0010938X25004949</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.corsci.2025.113167" target="_blank" >10.1016/j.corsci.2025.113167</a>
Alternative languages
Result language
angličtina
Original language name
Enhanced corrosion resistance of 2024 aluminum alloys with Cr2O3 thin layers by Atomic Layer Deposition
Original language description
This research explores the use of chromium oxide (Cr2O3) thin layers grown by Atomic Layer Deposition (ALD) as protective coating to enhance the corrosion resistance of 2024 aluminum alloys. In order to obtain sufficiently dense and uniform Cr2O3 layers, the ALD process was tailored in terms of alloy surface pretreatment before the main Cr2O3 ALD process. The corrosion resistance of both Cr2O3 coated and non-coated aluminum alloys was evaluated in a corrosive 0.1 M KOH environment using in situ optical microscopy and ex situ surface analysis techniques, including X-ray Photoelectron Spectroscopy (XPS) and Time-of-Flight Secondary Ion Mass Spectrometry (ToF-SIMS) and a neutral environment containing chlorides. Findings revealed that the Cr2O3-coated samples exhibited significantly reduced reactivity, highlighting the excellent corrosion protection provided by the Cr2O3 thin films. Although surface analysis revealed the presence of submicron defects within the Cr2O3 layer, which could act as corrosion initiation sites, the occurrence of these defects was mitigated with increasing Cr2O3 layer thickness. Additionally, after the corrosion test, an enrichment of copper and aluminum oxides at the layer surface was observed, suggesting preferential attack at intermetallic phases in corrosive environment.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20500 - Materials engineering
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Corrosion science
ISSN
0010-938X
e-ISSN
1879-0496
Volume of the periodical
256
Issue of the periodical within the volume
November
Country of publishing house
GB - UNITED KINGDOM
Number of pages
10
Pages from-to
1-10
UT code for WoS article
001539207200001
EID of the result in the Scopus database
2-s2.0-105010309250