High-Temperature Zn-5Al Hot Dip Galvanizing of Reinforcement Steel
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21450%2F24%3A00378016" target="_blank" >RIV/68407700:21450/24:00378016 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21610/24:00378016
Result on the web
<a href="https://doi.org/10.3390/coatings14080959" target="_blank" >https://doi.org/10.3390/coatings14080959</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/coatings14080959" target="_blank" >10.3390/coatings14080959</a>
Alternative languages
Result language
angličtina
Original language name
High-Temperature Zn-5Al Hot Dip Galvanizing of Reinforcement Steel
Original language description
This article presents the results of research on the growth kinetics, microstructure (SEM/EDS/XRD), and corrosion behavior of Zn-5Al coatings obtained using a high-temperature hot dip process on B500B reinforcing steel. The corrosion resistance of the coatings was determined using the neutral salt spray (NSS) test (EN ISO 9227). Based on chemical composition tests in micro-areas (EDS) and phase composition tests (XRD), corrosion products formed on the coating surface after exposure to a corrosive environment containing chlorides were identified. In the outer layer of the coating, areas rich in Zn and Al were found, which were solid solutions of Al in Zn (), while the diffusion layer was formed by a layer of Fe(Al,Zn)3 intermetallics. The growth kinetics of the coatings indicate the sequential growth of the diffusion layer, controlled by diffusion in the initial phase of growth, and the formation of a periodic layered structure with a longer immersion time. The NSS test showed an improved corrosion resistance of reinforcing bars with Zn-5Al coatings compared to a conventional hot-dip-galvanized zinc coating. The increase in corrosion resistance was caused by the formation of beneficial corrosion products: layered double hydroxides (LDH) based on Zn2+ and Al3+ cations and Cl- anions and simonkolleite—Zn5(OH)8Cl2H2O.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20101 - Civil engineering
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Coatings
ISSN
2079-6412
e-ISSN
2079-6412
Volume of the periodical
14
Issue of the periodical within the volume
8
Country of publishing house
CH - SWITZERLAND
Number of pages
14
Pages from-to
—
UT code for WoS article
001305674000001
EID of the result in the Scopus database
2-s2.0-85202688722