Impact of shot peening on corrosion performance of AZ31 magnesium alloy coated by PEO: Comparison with conventional surface pre-treatments
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F22%3A00561097" target="_blank" >RIV/68081723:_____/22:00561097 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/22:10454451
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0257897222006946?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0257897222006946?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.surfcoat.2022.128773" target="_blank" >10.1016/j.surfcoat.2022.128773</a>
Alternative languages
Result language
angličtina
Original language name
Impact of shot peening on corrosion performance of AZ31 magnesium alloy coated by PEO: Comparison with conventional surface pre-treatments
Original language description
This paper deals with the evaluation of the influence of selected pre-treatments, namely shot peening, polishing and grinding, used prior to plasma electrolytic oxidation (PEO) on the corrosion characteristics of AZ31 mag-nesium alloy in solution of 0.1 M NaCl. Additionally, selected combinations of pre-treatment and PEO coating were optimized in terms of the PEO preparation time. Corrosion characteristics of prepared surfaces were determined by the electrochemical impedance spectroscopy (EIS) during 168 h of exposure at the laboratory temperature followed by the equivalent circuit analysis of measured Nyquist diagrams. Localised corrosion events of selected combinations of pre-treatment and PEO coating were observed by local electrochemical impedance spectroscopy (LEIM) in 1 mM NaCl supplied by the potentiodynamic polarization tests. The obtained results showed that despite the negative impact of shot peening on the electrochemical reactivity of AZ31 alloy, this technique significantly enhanced corrosion stability of the subsequently formed PEO coating.
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
20506 - Coating and films
Result continuities
Project
<a href="/en/project/EF15_003%2F0000485" target="_blank" >EF15_003/0000485: Nanomaterials centre for advanced applications</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Surface and Coatings Technology
ISSN
0257-8972
e-ISSN
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Volume of the periodical
446
Issue of the periodical within the volume
SEP
Country of publishing house
CH - SWITZERLAND
Number of pages
20
Pages from-to
128773
UT code for WoS article
000848086400003
EID of the result in the Scopus database
2-s2.0-85135844008