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Article

Erosion–Corrosion of AISI 304L Stainless Steel Affected by Industrial Copper Tailings

1
Departamento de Ingeniería en Metalurgia, Universidad de Atacama, Copiapó 1530000, Chile
2
Departamento de Ingeniería Química y Procesos de Minerales, Universidad de Antofagasta, Antofagasta 1240000, Chile
3
Departamento de Ingeniería de Mecánica y Metalúrgica, Escuela de Ingeniería, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile
*
Author to whom correspondence should be addressed.
Metals 2020, 10(8), 1005; https://doi.org/10.3390/met10081005
Received: 30 June 2020 / Revised: 22 July 2020 / Accepted: 24 July 2020 / Published: 27 July 2020
A comprehensive analysis of the erosion–corrosion behavior of AISI 304L stainless steel immersed in 0.5 M NaCl solution with the addition of industrial tailing particles obtained from the copper mining industry is reported. From fundamental studies using combined measurements of potentiodynamic and weight loss techniques, the pure corrosion, pure erosion, and their synergism on the total wear rate were evaluated. The results showed that the presence of soluble chemical reagents dragged by tailing particles significantly affects the pure corrosion rate in comparison with a NaCl solution without these chemical reagents. In addition, the wear of stainless steel by pure erosion was found to be more important than that of pure corrosion. Erosion–corrosion tests performed under an open circuit potential behavior indicate lower and higher wear values than that obtained for erosion and corrosion rates, respectively. Through these results, it was possible to determine an antagonistic effect for AISI 304L stainless steel in industrial tailings slurries. These results are supported by changes in the electrochemical parameters, passive film stability, and morphological attributes. View Full-Text
Keywords: antagonism; AISI 304L stainless steel; erosion–corrosion; mining tailing antagonism; AISI 304L stainless steel; erosion–corrosion; mining tailing
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MDPI and ACS Style

Soliz, Á.; Cáceres, L.; Pineda, F.; Galleguillos, F. Erosion–Corrosion of AISI 304L Stainless Steel Affected by Industrial Copper Tailings. Metals 2020, 10, 1005. https://doi.org/10.3390/met10081005

AMA Style

Soliz Á, Cáceres L, Pineda F, Galleguillos F. Erosion–Corrosion of AISI 304L Stainless Steel Affected by Industrial Copper Tailings. Metals. 2020; 10(8):1005. https://doi.org/10.3390/met10081005

Chicago/Turabian Style

Soliz, Álvaro, Luis Cáceres, Fabiola Pineda, and Felipe Galleguillos. 2020. "Erosion–Corrosion of AISI 304L Stainless Steel Affected by Industrial Copper Tailings" Metals 10, no. 8: 1005. https://doi.org/10.3390/met10081005

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