Corrosion Behavior of ZnMn Coatings Magnetoelectrodeposited
The zinc–manganese alloy coatings have been obtained without and with superimposition of a 0.3 T magnetic field in a parallel direction to the working surface electrode. The electrodeposition during 30 min, for two applied potentials (E = −1.6 V/SCE and E = −1.8 V/SCE) in an electrochemical bath wit...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-06-01
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| Series: | Magnetochemistry |
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| Online Access: | https://www.mdpi.com/2312-7481/8/7/69 |
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| author | Lamia Allam Florica S. Lazar Jean-Paul Chopart |
| author_facet | Lamia Allam Florica S. Lazar Jean-Paul Chopart |
| author_sort | Lamia Allam |
| collection | DOAJ |
| description | The zinc–manganese alloy coatings have been obtained without and with superimposition of a 0.3 T magnetic field in a parallel direction to the working surface electrode. The electrodeposition during 30 min, for two applied potentials (E = −1.6 V/SCE and E = −1.8 V/SCE) in an electrochemical bath with the (Zn<sup>2+</sup>)/(Mn<sup>2+</sup>) concentration ratio equal to 0.5. The structural, the morphological, and the chemical composition characteristics of the deposits have been studied. It has been found that the applied potentials modify the structural properties of the deposits, η phase-rich deposits elaborated for E = −1.6 V/SCE, and MnZn<sub>3</sub>-rich deposits elaborated for E = −1.8 V/SCE. The magnetohydrodynamic convection favors the manganese content of the deposit. The corrosion behavior of these coatings has been analyzed in 3.5% NaCl solution by free corrosion potential measurements and electrochemical impedance spectroscopy. The different results show that the corrosion resistance of these zinc–manganese alloy coatings is linked to their structure, to their composition, and to the magnetic field amplitude used during the electrodeposition process. |
| first_indexed | 2024-03-09T13:29:17Z |
| format | Article |
| id | doaj.art-74249f4fb4c44fcf956d94044abe40af |
| institution | Directory Open Access Journal |
| issn | 2312-7481 |
| language | English |
| last_indexed | 2024-03-09T13:29:17Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Magnetochemistry |
| spelling | doaj.art-74249f4fb4c44fcf956d94044abe40af2023-11-30T21:19:40ZengMDPI AGMagnetochemistry2312-74812022-06-01876910.3390/magnetochemistry8070069Corrosion Behavior of ZnMn Coatings MagnetoelectrodepositedLamia Allam0Florica S. Lazar1Jean-Paul Chopart2Matériaux et Ingénierie Mécanique (MATIM), Université de Reims Champagne-Ardenne, BP 1039, CEDEX 02, 51687 Reims, FranceMatériaux et Ingénierie Mécanique (MATIM), Université de Reims Champagne-Ardenne, BP 1039, CEDEX 02, 51687 Reims, FranceMatériaux et Ingénierie Mécanique (MATIM), Université de Reims Champagne-Ardenne, BP 1039, CEDEX 02, 51687 Reims, FranceThe zinc–manganese alloy coatings have been obtained without and with superimposition of a 0.3 T magnetic field in a parallel direction to the working surface electrode. The electrodeposition during 30 min, for two applied potentials (E = −1.6 V/SCE and E = −1.8 V/SCE) in an electrochemical bath with the (Zn<sup>2+</sup>)/(Mn<sup>2+</sup>) concentration ratio equal to 0.5. The structural, the morphological, and the chemical composition characteristics of the deposits have been studied. It has been found that the applied potentials modify the structural properties of the deposits, η phase-rich deposits elaborated for E = −1.6 V/SCE, and MnZn<sub>3</sub>-rich deposits elaborated for E = −1.8 V/SCE. The magnetohydrodynamic convection favors the manganese content of the deposit. The corrosion behavior of these coatings has been analyzed in 3.5% NaCl solution by free corrosion potential measurements and electrochemical impedance spectroscopy. The different results show that the corrosion resistance of these zinc–manganese alloy coatings is linked to their structure, to their composition, and to the magnetic field amplitude used during the electrodeposition process.https://www.mdpi.com/2312-7481/8/7/69ZnMn alloyscorrosionmagnetic fieldMnZn<sub>3</sub>η phaseEIS |
| spellingShingle | Lamia Allam Florica S. Lazar Jean-Paul Chopart Corrosion Behavior of ZnMn Coatings Magnetoelectrodeposited Magnetochemistry ZnMn alloys corrosion magnetic field MnZn<sub>3</sub> η phase EIS |
| title | Corrosion Behavior of ZnMn Coatings Magnetoelectrodeposited |
| title_full | Corrosion Behavior of ZnMn Coatings Magnetoelectrodeposited |
| title_fullStr | Corrosion Behavior of ZnMn Coatings Magnetoelectrodeposited |
| title_full_unstemmed | Corrosion Behavior of ZnMn Coatings Magnetoelectrodeposited |
| title_short | Corrosion Behavior of ZnMn Coatings Magnetoelectrodeposited |
| title_sort | corrosion behavior of znmn coatings magnetoelectrodeposited |
| topic | ZnMn alloys corrosion magnetic field MnZn<sub>3</sub> η phase EIS |
| url | https://www.mdpi.com/2312-7481/8/7/69 |
| work_keys_str_mv | AT lamiaallam corrosionbehaviorofznmncoatingsmagnetoelectrodeposited AT floricaslazar corrosionbehaviorofznmncoatingsmagnetoelectrodeposited AT jeanpaulchopart corrosionbehaviorofznmncoatingsmagnetoelectrodeposited |