Zinc galvanized steel sheets crystal size influence in environments containing chlorides and sulfates
This paper studied the influence of the zinc crystal size in the electrochemical behavior of steel sheets hot-dip galvanized. The tests were performed in an electrochemical flat cell in solutions with different concentrations of NaCl and NaSO4. The rate, mechanism of corrosion and the resistive and...
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| Format: | Online |
| Language: | spa |
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Universidad Pedagógica y Tecnológica de Colombia
2015
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| Online Access: | https://revistas.uptc.edu.co/index.php/ingenieria/article/view/3552 |
| _version_ | 1801706070206316544 |
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| author | Ramírez-Jerez, Julieth Andrea Valero-Alvarado, Mario Peña-Ballesteros, Darío Yesid Torres-Ramírez, Jhon Edisson |
| author_facet | Ramírez-Jerez, Julieth Andrea Valero-Alvarado, Mario Peña-Ballesteros, Darío Yesid Torres-Ramírez, Jhon Edisson |
| author_sort | Ramírez-Jerez, Julieth Andrea |
| collection | OJS |
| description | This paper studied the influence of the zinc crystal size in the electrochemical behavior of steel sheets hot-dip galvanized. The tests were performed in an electrochemical flat cell in solutions with different concentrations of NaCl and NaSO4. The rate, mechanism of corrosion and the resistive and diffusive characteristics of the sheets were tested by electrochemical techniques like electrochemical impedance spectroscopy (EIS), polarization resistance (Rp) and potentiodynamic polarization curves. The composition and distribution of the products of corrosion (FeO and some zinc compounds) and the surface damage caused by them, were determined using XRD and SEM-EDS. Results showed that the degradation of the oxide layer formed is affected by the presence of chlorides, which penetrate reaching the surface of the base metal, producing localized corrosion. |
| format | Online |
| id | oai:oai.revistas.uptc.edu.co:article-3552 |
| institution | Revista Facultad de Ingeniería |
| language | spa |
| publishDate | 2015 |
| publisher | Universidad Pedagógica y Tecnológica de Colombia |
| record_format | ojs |
| spelling | oai:oai.revistas.uptc.edu.co:article-35522018-11-21T00:49:15Z Zinc galvanized steel sheets crystal size influence in environments containing chlorides and sulfates Influencia del tamaño del cristal de cinc de láminas de acero galvanizadas en ambientes que contienen cloruros y sulfatos Ramírez-Jerez, Julieth Andrea Valero-Alvarado, Mario Peña-Ballesteros, Darío Yesid Torres-Ramírez, Jhon Edisson galvanized steel corrosion chlorides sulphates resistance polarization electrochemical impedance spectroscopy (EIS) potentiodynamic curves Acero galvanizado Cristales de cinc Corrosión. This paper studied the influence of the zinc crystal size in the electrochemical behavior of steel sheets hot-dip galvanized. The tests were performed in an electrochemical flat cell in solutions with different concentrations of NaCl and NaSO4. The rate, mechanism of corrosion and the resistive and diffusive characteristics of the sheets were tested by electrochemical techniques like electrochemical impedance spectroscopy (EIS), polarization resistance (Rp) and potentiodynamic polarization curves. The composition and distribution of the products of corrosion (FeO and some zinc compounds) and the surface damage caused by them, were determined using XRD and SEM-EDS. Results showed that the degradation of the oxide layer formed is affected by the presence of chlorides, which penetrate reaching the surface of the base metal, producing localized corrosion. El trabajo evaluó la influencia del tamaño del cristal de cinc en el comportamiento electroquímico de láminas de acero galvanizadas por inmersión en caliente. Los ensayos se realizaron en una celda electroquímica plana en soluciones con diferentes concentraciones de NaCl y NaSO4. La velocidad y el mecanismo de corrosión, así como las características resistivas y difusivas de las láminas se evaluaron mediante técnicas electroquímicas, como espectroscopia de impedancia electroquímica (EIS), resistencia a la polarización (Rp) y curvas potenciodinámicas. La composición y distribución de los productos de corrosión (FeO y algunos compuestos de cinc) y el daño superficial causado por estos se determinaron por medio de DRX y SEM-EDS. Los resultados mostraron que la degradación de la capa de óxidos formada se ve afectada por la presencia de cloruros que penetran, llegan a la superficie del metal base y generan corrosión localizada. Universidad Pedagógica y Tecnológica de Colombia 2015-05-05 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion investigation application/pdf text/html https://revistas.uptc.edu.co/index.php/ingenieria/article/view/3552 10.19053/01211129.3552 Revista Facultad de Ingeniería; Vol. 24 No. 39 (2015); 99-108 Revista Facultad de Ingeniería; Vol. 24 Núm. 39 (2015); 99-108 2357-5328 0121-1129 spa https://revistas.uptc.edu.co/index.php/ingenieria/article/view/3552/3174 https://revistas.uptc.edu.co/index.php/ingenieria/article/view/3552/4329 |
| spellingShingle | galvanized steel corrosion chlorides sulphates resistance polarization electrochemical impedance spectroscopy (EIS) potentiodynamic curves Acero galvanizado Cristales de cinc Corrosión. Ramírez-Jerez, Julieth Andrea Valero-Alvarado, Mario Peña-Ballesteros, Darío Yesid Torres-Ramírez, Jhon Edisson Zinc galvanized steel sheets crystal size influence in environments containing chlorides and sulfates |
| title | Zinc galvanized steel sheets crystal size influence in environments containing chlorides and sulfates |
| title_alt | Influencia del tamaño del cristal de cinc de láminas de acero galvanizadas en ambientes que contienen cloruros y sulfatos |
| title_full | Zinc galvanized steel sheets crystal size influence in environments containing chlorides and sulfates |
| title_fullStr | Zinc galvanized steel sheets crystal size influence in environments containing chlorides and sulfates |
| title_full_unstemmed | Zinc galvanized steel sheets crystal size influence in environments containing chlorides and sulfates |
| title_short | Zinc galvanized steel sheets crystal size influence in environments containing chlorides and sulfates |
| title_sort | zinc galvanized steel sheets crystal size influence in environments containing chlorides and sulfates |
| topic | galvanized steel corrosion chlorides sulphates resistance polarization electrochemical impedance spectroscopy (EIS) potentiodynamic curves Acero galvanizado Cristales de cinc Corrosión. |
| topic_facet | galvanized steel corrosion chlorides sulphates resistance polarization electrochemical impedance spectroscopy (EIS) potentiodynamic curves Acero galvanizado Cristales de cinc Corrosión. |
| url | https://revistas.uptc.edu.co/index.php/ingenieria/article/view/3552 |
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