Singh, Charu and Tiwari, S K and Singh, Raghuvir (2021) Development of corrosion-resistant electroplating on AZ91 Mg alloy by employing air and water-stable eutectic based ionic liquid bath. Surface & Coatings Technology, 428 .
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Abstract
The present investigations construe study of Ni electroplating on AZ91 alloy in novel ChCl- ethylene glycol eutectic based ionic liquid using non-fluoride and non-chromium surface pretreatments and sandwiched electroless Ni-P layer. The electroplating employed Ce(NO3)(3) containing pretreatment offered highest corrosion resistance with corrosion current density similar to 0.9 mu A cm(-2) and sustained 10 h salt spray exposure without failure. The coating produced with Ce(NO3)(3) pretreatment showed highest critical load similar to 15.53 N and exhibited better adhesion strength than that produced using NiCO3. The coating performance is correlated with porosity index and NiP2 phase evolved after heat treatment.
| Item Type: | Article |
|---|---|
| Official URL/DOI: | https://10.1016/j.surfcoat.2021.127881 |
| Uncontrolled Keywords: | AZ91 alloy; ChCl based ionic liquids (ILs);Ni electro plating; Corrosion; Scratch resistance; Ni-p alloys; Magnesium alloy; Electroless ni; heat-treatment; Electrodeposition; Pretreatment; Deposition; Coatings; Metals; Copper |
| Divisions: | Material Science and Technology |
| ID Code: | 8480 |
| Deposited By: | Dr Mita Tarafder |
| Deposited On: | 30 Dec 2021 11:04 |
| Last Modified: | 30 Dec 2021 11:04 |
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