Corrosion Rates Evaluation of Stainless Steels in Soy Biodiesel Using Different Techniques
In the present research we studied the behavior against corrosion of four stainless steels in soy biodiesel at room temperature. The stainless steels used were AISI 304L, AISI 316, Sea Cure-1 and 2205. The corrosion velocities were measured by applying electrochemical tests and weight loss methods....
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Facultad de Ciencias Exactas, Químicas y Naturales
2018
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| Online toegang: | https://www.fceqyn.unam.edu.ar/recyt/index.php/recyt/article/view/210 |
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ojs-article-2102020-03-06T10:56:30Z Corrosion Rates Evaluation of Stainless Steels in Soy Biodiesel Using Different Techniques Evaluación de la velocidad de corrosión de aceros inoxidables en biodiesel de soja utilizando diferentes técnicas Román, Alejandra S. Méndez, Claudia M. Ares, Alicia E. Corrosion Biodiesel Stainless steel Linear polarization Gravimetric tests Electrochemical Impedance Spectroscopy (EIS) Biodiesel Corrosión Aceros Inoxidables Polarización Lineal Ensayos Gravimétricos Espectroscopía de Impedancia Electroquímica (EIE). In the present research we studied the behavior against corrosion of four stainless steels in soy biodiesel at room temperature. The stainless steels used were AISI 304L, AISI 316, Sea Cure-1 and 2205. The corrosion velocities were measured by applying electrochemical tests and weight loss methods. The electrochemical studies conducted were potentiodynamic polarization curves, measurement of the open circuit potential as a function of time, and Electrochemical Impedance Spectroscopy (EIS) measurements. In addition, gravimetric tests were performed according to ASTM G 31-72.The four stainless steels showed low corrosion rates being steel 2205 the one which always showed the lowest value. This indicates that the materials studied are suitable for use in contact with biodiesel obtained from soy oil. The agreement obtained in the results by applying different methods allows us to conclude that the electrochemical techniques are suitable to evaluate corrosion rates in soy biodiesel. En el presente trabajo se estudió el comportamiento frente a la corrosión de cuatro aceros inoxidables, en biodiesel de soja a temperatura ambiente. Los aceros inoxidables utilizados fueron: AISI 304L, AISI 316, Sea Cure-1 y 2205. Se midieron las velocidades de corrosión aplicando métodos electroquímicos y mediante ensayos de pérdida de peso. Los estudios electroquímicos realizados fueron curvas de polarización potenciodinámica, medidas del potencial de circuito abierto en función del tiempo, y medidas de Espectroscopía de Impedancia Electroquímica. Además, se realizaron ensayos gravimétricos siguiendo la Norma ASTM G 31-72. Se obtuvieron bajas velocidades de corrosión para los cuatro aceros inoxidables, siendo siempre menor la velocidad de corrosión del acero 2205. Esto indica que los materiales estudiados son adecuados para utilizarse en contacto con biodiesel obtenido a partir de aceite de soja. La concordancia obtenida en los resultados al aplicar los diferentes métodos, permite concluir que los técnicas electroquímicas son adecuados para evaluar velocidades de corrosión de en biodiesel. Facultad de Ciencias Exactas, Químicas y Naturales 2018-08-23 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://www.fceqyn.unam.edu.ar/recyt/index.php/recyt/article/view/210 Argentine Journal of Science and Technology; Vol. 29 No. 1 (2018); 27-34 Revista de Ciencia y Tecnología; Vol. 29 Núm. 1 (2018); 27-34 1851-7587 0329-8922 spa https://www.fceqyn.unam.edu.ar/recyt/index.php/recyt/article/view/210/299 |
| institution |
Facultad de Ciencias Exactas Quimicas y Naturales |
| collection |
Revista de Ciencia y Tecnologia RECyT |
| language |
Spanish |
| topic |
Corrosion Biodiesel Stainless steel Linear polarization Gravimetric tests Electrochemical Impedance Spectroscopy (EIS) Biodiesel Corrosión Aceros Inoxidables Polarización Lineal Ensayos Gravimétricos Espectroscopía de Impedancia Electroquímica (EIE). |
| spellingShingle |
Corrosion Biodiesel Stainless steel Linear polarization Gravimetric tests Electrochemical Impedance Spectroscopy (EIS) Biodiesel Corrosión Aceros Inoxidables Polarización Lineal Ensayos Gravimétricos Espectroscopía de Impedancia Electroquímica (EIE). Román, Alejandra S. Méndez, Claudia M. Ares, Alicia E. Corrosion Rates Evaluation of Stainless Steels in Soy Biodiesel Using Different Techniques |
| topic_facet |
Corrosion Biodiesel Stainless steel Linear polarization Gravimetric tests Electrochemical Impedance Spectroscopy (EIS) Biodiesel Corrosión Aceros Inoxidables Polarización Lineal Ensayos Gravimétricos Espectroscopía de Impedancia Electroquímica (EIE). |
| format |
Online |
| author |
Román, Alejandra S. Méndez, Claudia M. Ares, Alicia E. |
| author_facet |
Román, Alejandra S. Méndez, Claudia M. Ares, Alicia E. |
| author_sort |
Román, Alejandra S. |
| title |
Corrosion Rates Evaluation of Stainless Steels in Soy Biodiesel Using Different Techniques |
| title_short |
Corrosion Rates Evaluation of Stainless Steels in Soy Biodiesel Using Different Techniques |
| title_full |
Corrosion Rates Evaluation of Stainless Steels in Soy Biodiesel Using Different Techniques |
| title_fullStr |
Corrosion Rates Evaluation of Stainless Steels in Soy Biodiesel Using Different Techniques |
| title_full_unstemmed |
Corrosion Rates Evaluation of Stainless Steels in Soy Biodiesel Using Different Techniques |
| title_sort |
corrosion rates evaluation of stainless steels in soy biodiesel using different techniques |
| title_alt |
Evaluación de la velocidad de corrosión de aceros inoxidables en biodiesel de soja utilizando diferentes técnicas |
| description |
In the present research we studied the behavior against corrosion of four stainless steels in soy biodiesel at room temperature. The stainless steels used were AISI 304L, AISI 316, Sea Cure-1 and 2205. The corrosion velocities were measured by applying electrochemical tests and weight loss methods. The electrochemical studies conducted were potentiodynamic polarization curves, measurement of the open circuit potential as a function of time, and Electrochemical Impedance Spectroscopy (EIS) measurements. In addition, gravimetric tests were performed according to ASTM G 31-72.The four stainless steels showed low corrosion rates being steel 2205 the one which always showed the lowest value. This indicates that the materials studied are suitable for use in contact with biodiesel obtained from soy oil. The agreement obtained in the results by applying different methods allows us to conclude that the electrochemical techniques are suitable to evaluate corrosion rates in soy biodiesel. |
| publisher |
Facultad de Ciencias Exactas, Químicas y Naturales |
| publishDate |
2018 |
| url |
https://www.fceqyn.unam.edu.ar/recyt/index.php/recyt/article/view/210 |
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