Volume 11, Issue 42 (1-2022)
مهندسی خوردگی 2022, 11(42): 55-66 |
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Fabrication of Ni-Cu with Hierarchical
Structure on Cu substrate via
Electrodeposition Method and
Investigation the Microstructure and
Corrosion Resistance. مهندسی خوردگی 2022; 11 (42) :55-66
URL: http://journal.ica.ir/article-1-170-en.html
URL: http://journal.ica.ir/article-1-170-en.html
Abstract: (288 Views)
The study of superfluid levels due to the importance of these levels in many applications has been considered. In
this study, nickel-copper alloy coatings were created using a two-step electrochemical deposition method-the
surface energy reduction and microstructure and corrosion resistance were investigated. Surface morphology was
investigated using scanning electron microscopy and XRD for field publishing and fuzzy structure. Corrosion
resistance was investigated using potentiodynamic polarization method as well as electrochemical impedance
spectroscopy. The results of this study showed that by increasing the concentration of Modidium crystal in the
coating bath, the nanostructured coating was obtained and at a concentration of 200 grams per liter, a hieratic
hierarchy coating was obtained. XRD data showed that only the nickel phase was created and a solid solution was
created by the entry of copper atoms into the structure. Corrosion behavior studies showed that with the formation
of coating, the corrosion density decreased from 6.2 to 0.12 mA/cm2, and corrosion potential from-273 to -171
also decreased. The reason for this was the capture of trapped air in the coating, thereby preventing the entry of
corrosive ions into the substrate as well as the Laplace pressure.
this study, nickel-copper alloy coatings were created using a two-step electrochemical deposition method-the
surface energy reduction and microstructure and corrosion resistance were investigated. Surface morphology was
investigated using scanning electron microscopy and XRD for field publishing and fuzzy structure. Corrosion
resistance was investigated using potentiodynamic polarization method as well as electrochemical impedance
spectroscopy. The results of this study showed that by increasing the concentration of Modidium crystal in the
coating bath, the nanostructured coating was obtained and at a concentration of 200 grams per liter, a hieratic
hierarchy coating was obtained. XRD data showed that only the nickel phase was created and a solid solution was
created by the entry of copper atoms into the structure. Corrosion behavior studies showed that with the formation
of coating, the corrosion density decreased from 6.2 to 0.12 mA/cm2, and corrosion potential from-273 to -171
also decreased. The reason for this was the capture of trapped air in the coating, thereby preventing the entry of
corrosive ions into the substrate as well as the Laplace pressure.
Keywords: Ni-Cu coatings, microstructure, corrosion resistance, electrochemical impedance spectroscopy
Type of Study: Research |
Subject:
General
Received: 2023/01/28 | Accepted: 2023/01/30 | Published: 2023/01/30
Received: 2023/01/28 | Accepted: 2023/01/30 | Published: 2023/01/30
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