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

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...

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Main Authors: Álvaro Soliz, Luis Cáceres, Fabiola Pineda, Felipe Galleguillos
Format: Article
Language:English
Published: MDPI AG 2020-07-01
Series:Metals
Subjects:
Online Access:https://www.mdpi.com/2075-4701/10/8/1005
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author Álvaro Soliz
Luis Cáceres
Fabiola Pineda
Felipe Galleguillos
author_facet Álvaro Soliz
Luis Cáceres
Fabiola Pineda
Felipe Galleguillos
author_sort Álvaro Soliz
collection DOAJ
description 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.
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spelling doaj.art-710dfc1a1ae34beea2714c44f99fef682023-11-20T08:04:36ZengMDPI AGMetals2075-47012020-07-01108100510.3390/met10081005Erosion–Corrosion of AISI 304L Stainless Steel Affected by Industrial Copper TailingsÁlvaro Soliz0Luis Cáceres1Fabiola Pineda2Felipe Galleguillos3Departamento de Ingeniería en Metalurgia, Universidad de Atacama, Copiapó 1530000, ChileDepartamento de Ingeniería Química y Procesos de Minerales, Universidad de Antofagasta, Antofagasta 1240000, ChileDepartamento de Ingeniería de Mecánica y Metalúrgica, Escuela de Ingeniería, Pontificia Universidad Católica de Chile, Santiago 8331150, ChileDepartamento de Ingeniería Química y Procesos de Minerales, Universidad de Antofagasta, Antofagasta 1240000, ChileA 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.https://www.mdpi.com/2075-4701/10/8/1005antagonismAISI 304L stainless steelerosion–corrosionmining tailing
spellingShingle Álvaro Soliz
Luis Cáceres
Fabiola Pineda
Felipe Galleguillos
Erosion–Corrosion of AISI 304L Stainless Steel Affected by Industrial Copper Tailings
Metals
antagonism
AISI 304L stainless steel
erosion–corrosion
mining tailing
title Erosion–Corrosion of AISI 304L Stainless Steel Affected by Industrial Copper Tailings
title_full Erosion–Corrosion of AISI 304L Stainless Steel Affected by Industrial Copper Tailings
title_fullStr Erosion–Corrosion of AISI 304L Stainless Steel Affected by Industrial Copper Tailings
title_full_unstemmed Erosion–Corrosion of AISI 304L Stainless Steel Affected by Industrial Copper Tailings
title_short Erosion–Corrosion of AISI 304L Stainless Steel Affected by Industrial Copper Tailings
title_sort erosion corrosion of aisi 304l stainless steel affected by industrial copper tailings
topic antagonism
AISI 304L stainless steel
erosion–corrosion
mining tailing
url https://www.mdpi.com/2075-4701/10/8/1005
work_keys_str_mv AT alvarosoliz erosioncorrosionofaisi304lstainlesssteelaffectedbyindustrialcoppertailings
AT luiscaceres erosioncorrosionofaisi304lstainlesssteelaffectedbyindustrialcoppertailings
AT fabiolapineda erosioncorrosionofaisi304lstainlesssteelaffectedbyindustrialcoppertailings
AT felipegalleguillos erosioncorrosionofaisi304lstainlesssteelaffectedbyindustrialcoppertailings