| Yazarlar (3) |
Mothana Ghazi Kadhim
|
|
Ali H. Abbar
|
Prof. Dr. Fatma KANDEMİRLİ
Kastamonu Üniversitesi, Türkiye |
| Özet |
| Corrosion of Zn-Ni alloy coatings on stainless steel 316 SS in a chloride-sulfate bath with the addition of either triethanolamine or sucrose was examined. A constant cathode potential was used to deposit zinc-nickel alloys, while cyclic voltammetry and potentio-dynamic polarization were used to measure corrosion. In addition, scanning electron microscopy was utilized to analyse Zn-Ni alloy coating surface layers formed without and with additives. The outcomes discovered that the corrosion resistance of Zn-Ni alloy coatings in 3.5 % NaCl solution was highly influenced by adding triethanolamine or sucrose. Decreasing the Zn:Ni molar ratio led to an increase in corrosion resistance. All Zn-Ni alloy coatings were superior to pure Zn coating in their corrosion behaviour. The best result was found for potentiostatic electrodeposition of Zn-Ni alloy at the cathodic potential of-1.3 V vs. Ag/AgCl for 20 minutes in the presence of 0.335 M triethanolamine from a solution containing 0.02 M ZnCl2, 0.1 M NiSO4, 0.4 M H3BO4 and 1 M Na2SO4. For this Zn-Ni coating, a low corrosion rate of 0.00795 mm year-1 was observed at Ecorr =-0.5 V vs. Ag/AgCl and icorr= 0.535 µA cm-2. Scanning electron microscopy confirmed that this alloy has a granular structure with no cracks and a less porous structure. The new Zn-Ni alloy is superior in its properties in terms of corrosion resistance compared with those obtained in previous studies. |
| Anahtar Kelimeler |
| bath composition | corrosion resistance | electrodeposition | Metal alloy coatings | organic additives |
| Makale Türü | Özgün Makale |
| Makale Alt Türü | ESCI dergilerinde yayımlanan tam makale |
| Dergi Adı | Journal of Electrochemical Science and Engineering |
| Dergi ISSN | 1847-9286 |
| Dergi Tarandığı Indeksler | scopus |
| Makale Dili | Türkçe |
| Basım Tarihi | 04-2025 |
| Cilt No | 15 |
| Sayı | 3 |
| Doi Numarası | 10.5599/jese.2607 |
| Makale Linki | https://doi.org/10.5599/jese.2607 |
| Atıf Sayıları |
