| Yazarlar (4) |
Meryem Evecen
Türkiye |
|
Mothana Ghaz Alfalah,
|
|
Murat Saraçoğlu
Erciyes Üniversitesi, Türkiye |
Prof. Dr. Fatma KANDEMİRLİ
Kastamonu Üniversitesi, Türkiye |
| Özet |
| Zn–Ni–Cu–Fe–Cd quinary alloy was successfully electrodeposited on mild steel from acetate-sulphate baths with only cathodic potential applied during linear sweep voltammetry. The influence of scan rate (1 mV/s, 5 mV/s and 10 mV/s) as well as the effect of organic additives: 4-(4-nitrophenyl)-3-thiosemicarbazide or 4-(3-methoxyphenyl)--3-thiosemicarbazide, on the surface appearance and deposit composition were investigated. Three electrochemical techniques, potentiodynamic polarisation (PDP), linear polarisation resistance (LPR) and electrochemical impedance spectroscopy (EIS) were used to investigate the corrosion behaviour of the alloy composition after immersion in a solution containing 1 M HCl. Energy dispersive X-ray (EDX) and scanning electron microscopy (SEM) were carried out after deposition to provide a visual aspect of the coating. The lowest corrosion current density, the highest corrosion resistance, and the highest impedance were observed in ea ch alloy system at a scan rate of 1 mV/s. These values were: 67 µA/cm−2, 51 µA/cm−2, and 7.6 µA/cm−2 for PDP, 965 Ω · cm², 1117 Ω · cm², and 2853 Ω · cm² for LPR, and 1602 Ω · cm², 12938 Ω · cm², and 1595 Ω · cm² for EIS, corresponding to coatings without additives, coatings with the additive 4-(4-nitrophenyl)-3-thiosemicarbazide, and coatings with the additive 4-(3-methoxyphenyl)-3-thiosemicarbazide, respectively. From the SEM and EDX results it was concluded that 4-(3-methoxyphenyl)-3-thiosemicarbazide has a more pronounced effect on the coating than 4-(4-nitrophenyl)-3-thiosemicarbazide, probably due to its better adsorption on the surface of soft steel. |
| Anahtar Kelimeler |
| EIS | electrodeposition | organic additives | quinary alloy Zn–Ni–Cu–Fe–Cd | scan rate | SEM |
| Makale Türü | Özgün Makale |
| Makale Alt Türü | ESCI dergilerinde yayımlanan tam makale |
| Dergi Adı | OCHRONA PRZED KOROZJĄ |
| Dergi ISSN | 0473-7733 |
| Dergi Tarandığı Indeksler | scopus |
| Makale Dili | Türkçe |
| Basım Tarihi | 03-2025 |
| Cilt No | 1 |
| Sayı | 2 |
| Sayfalar | 41 / 47 |
| Doi Numarası | 10.15199/40.2025.2.2 |
| Makale Linki | https://doi.org/10.15199/40.2025.2.2 |
| Atıf Sayıları |
