Effect of a Ni-P coating on the corrosion resistance of an additive manufacturing carbon steel immersed in a 0.1 M NaCl solution

[Display omitted] •It is possible to obtain a steel with good behavior in its mechanical properties.•The Ni-P coating is of high density, with acceptable adhesion, good homogeneity.•The coating has a thickness of 32.18 µm and hardness of the order of 500 HV.•The XRD study shows an amorphous coating...

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Bibliographic Details
Published in:Materials letters 2020-09, Vol.275, p.128159, Article 128159
Main Authors: Agredo Diaz, Dayi Gilberto, Barba Pingarrón, Arturo, Olaya Florez, Jhon Jairo, González Parra, Jesús Rafael, Cervantes Cabello, Javier, Angarita Moncaleano, Irma, Covelo Villar, Alba, Hernández Gallegos, Miguel Ángel
Format: Article
Language:English
Subjects:
Additive manufacturing
Carbon steel
Coating effects
Corrosion effects
Corrosion resistance
Diamond pyramid hardness
EIS
Electrochemical analysis
Electrochemical noise
Electroless nickel plating
Homogeneity
Low carbon steels
Materials science
Nickel base alloys
Nickel coatings
Protective coatings
Substrates
White light interferometry
X-ray diffraction
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Summary:[Display omitted] •It is possible to obtain a steel with good behavior in its mechanical properties.•The Ni-P coating is of high density, with acceptable adhesion, good homogeneity.•The coating has a thickness of 32.18 µm and hardness of the order of 500 HV.•The XRD study shows an amorphous coating with increased corrosion resistance.•Coated material shows a noise resistance of 20 kΩ-cm2 after 576 h of evaluation. In this work, it has been possible to deposit a Ni-P alloy by electroless nickel plating on the surface of a low carbon steel sample, produced by additive manufacturing. The samples were characterized by SEM, EDS, XRD, white light interferometry, Vickers microhardness, EIS, and ENM techniques. A coating of an amorphous nature is obtained at a deposition rate of 9.19 µm/h, with high homogeneity, average roughness of 86.52 nm, good adhesion to the substrate, and a hardness of the order of 500 HV. The electrochemical characterization allows evidence of a significant increase in corrosion resistance for the coated material with a noise resistance of 20 kΩ-cm2 after 576 h of evaluation.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2020.128159