Effect of Temperature on the Corrosion Resistance of Ni5Al Coating Deposited by Electric Arc in 3.5% NaCl Solution

Cinthya Dinorah Arrieta-González; Francisco Javier Perez-Arizmendi; Milagros Alejandra Dorta-Leon; Jesús Porcayo-Calderón

doi:10.3390/coatings13081349

Effect of Temperature on the Corrosion Resistance of Ni5Al Coating Deposited by Electric Arc in 3.5% NaCl Solution

Cinthya Dinorah Arrieta-González, Francisco Javier Perez-Arizmendi, Milagros Alejandra Dorta-Leon, Jesús Porcayo-Calderón^*

^*Corresponding author for this work

Departamento de Ingeniería Química y Metalurgia

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

The electrochemical behavior of the Ni5Al coating deposited by an electric arc was evaluated. Its behavior was evaluated in a saline solution as a function of temperature (20 °C, 40 °C, and 60 °C). The variation as a function of time of the Ni5Al coating’s values of open circuit potential, linear polarization resistance, and the evolution of its electrochemical impedance spectra were analyzed. With this deposition technique, the rapid formation of thick coatings is achieved, which reduces the presence of interconnected porosity. Even though the microstructural characteristics showed the presence of trapped oxides, the electrochemical measurements carried out showed excellent corrosion resistance of the coating. The coating quickly develops a passive layer that allows it to rapidly reach thermodynamic equilibrium with the corrosive medium.

Original language	English
Article number	1349
Journal	Coatings
Volume	13
Issue number	8
DOIs	https://doi.org/10.3390/coatings13081349
State	Published - Aug 2023

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Publisher Copyright:
© 2023 by the authors.

Keywords

EIS
Ni5Al coatings
RPL
corrosion
electrochemical corrosion
passive layer

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10.3390/coatings13081349

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title = "Effect of Temperature on the Corrosion Resistance of Ni5Al Coating Deposited by Electric Arc in 3.5% NaCl Solution",

abstract = "The electrochemical behavior of the Ni5Al coating deposited by an electric arc was evaluated. Its behavior was evaluated in a saline solution as a function of temperature (20 °C, 40 °C, and 60 °C). The variation as a function of time of the Ni5Al coating{\textquoteright}s values of open circuit potential, linear polarization resistance, and the evolution of its electrochemical impedance spectra were analyzed. With this deposition technique, the rapid formation of thick coatings is achieved, which reduces the presence of interconnected porosity. Even though the microstructural characteristics showed the presence of trapped oxides, the electrochemical measurements carried out showed excellent corrosion resistance of the coating. The coating quickly develops a passive layer that allows it to rapidly reach thermodynamic equilibrium with the corrosive medium.",

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author = "Arrieta-Gonz{\'a}lez, {Cinthya Dinorah} and Perez-Arizmendi, {Francisco Javier} and Dorta-Leon, {Milagros Alejandra} and Jes{\'u}s Porcayo-Calder{\'o}n",

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doi = "10.3390/coatings13081349",

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volume = "13",

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T1 - Effect of Temperature on the Corrosion Resistance of Ni5Al Coating Deposited by Electric Arc in 3.5% NaCl Solution

AU - Arrieta-González, Cinthya Dinorah

AU - Perez-Arizmendi, Francisco Javier

AU - Dorta-Leon, Milagros Alejandra

AU - Porcayo-Calderón, Jesús

PY - 2023/8

Y1 - 2023/8

N2 - The electrochemical behavior of the Ni5Al coating deposited by an electric arc was evaluated. Its behavior was evaluated in a saline solution as a function of temperature (20 °C, 40 °C, and 60 °C). The variation as a function of time of the Ni5Al coating’s values of open circuit potential, linear polarization resistance, and the evolution of its electrochemical impedance spectra were analyzed. With this deposition technique, the rapid formation of thick coatings is achieved, which reduces the presence of interconnected porosity. Even though the microstructural characteristics showed the presence of trapped oxides, the electrochemical measurements carried out showed excellent corrosion resistance of the coating. The coating quickly develops a passive layer that allows it to rapidly reach thermodynamic equilibrium with the corrosive medium.

AB - The electrochemical behavior of the Ni5Al coating deposited by an electric arc was evaluated. Its behavior was evaluated in a saline solution as a function of temperature (20 °C, 40 °C, and 60 °C). The variation as a function of time of the Ni5Al coating’s values of open circuit potential, linear polarization resistance, and the evolution of its electrochemical impedance spectra were analyzed. With this deposition technique, the rapid formation of thick coatings is achieved, which reduces the presence of interconnected porosity. Even though the microstructural characteristics showed the presence of trapped oxides, the electrochemical measurements carried out showed excellent corrosion resistance of the coating. The coating quickly develops a passive layer that allows it to rapidly reach thermodynamic equilibrium with the corrosive medium.

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KW - RPL

KW - corrosion

KW - electrochemical corrosion

KW - passive layer

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DO - 10.3390/coatings13081349

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JO - Coatings

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Effect of Temperature on the Corrosion Resistance of Ni5Al Coating Deposited by Electric Arc in 3.5% NaCl Solution

Abstract

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Keywords

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