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

• DOI: 10.1016/j.matlet.2020.128159
• Publication Date: 2020-06-13T23:15:40Z
• Authors: Dayi Gilberto Agr...; Arturo Barba Ping...; Jhon Jairo Olaya ...; Jesús Rafael Gonz...; Javier Cervantes ...; Irma Angarita Mon...; Alba Covelo Villar; Miguel Ángel Hern...
• Keywords: 02 engineering and technology; 0210 nano-technology

Abstract 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.