A Study of the Corrosion Behavior of AHSS Complex-Phase CP 780 Employing an Electrochemical Noise Technique Analyzed by Different Methods
The automotive industry employs structural steels with E-coats to reduce weight and increase the corrosion resistance of chassis, reducing CO<sub>2</sub> emissions. Due to their mechanical properties, part of the chassis is a composite of advanced high-strength steels (AHSS). AHSSs are c...
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2025-01-01
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| author | Maria Lara-Banda Facundo Almeraya-Calderón Jesús Manuel Jáquez-Muñoz Demetrio Nieves-Mendoza Miguel Angel Baltazar-Zamora Javier Olguín-Coca Francisco Estupiñan-Lopez Jose Cabral Miramontes Griselda Santiago-Hurtado Citlalli Gaona-Tiburcio |
| author_facet | Maria Lara-Banda Facundo Almeraya-Calderón Jesús Manuel Jáquez-Muñoz Demetrio Nieves-Mendoza Miguel Angel Baltazar-Zamora Javier Olguín-Coca Francisco Estupiñan-Lopez Jose Cabral Miramontes Griselda Santiago-Hurtado Citlalli Gaona-Tiburcio |
| author_sort | Maria Lara-Banda |
| collection | DOAJ |
| description | The automotive industry employs structural steels with E-coats to reduce weight and increase the corrosion resistance of chassis, reducing CO<sub>2</sub> emissions. Due to their mechanical properties, part of the chassis is a composite of advanced high-strength steels (AHSS). AHSSs are coated by conversion methods such as phosphate to increase epoxy coating adherence and corrosion resistance. The main point of this research is to characterize an AHSS complex-phase (CP) 780 in blank, with a phosphate coating and an E-coat organic coating using electrochemical noise, employing time-domain, frequency-domain, time–frequency-domain, and chaotic system methods to determine the type and corrosion kinetics of each system. The electrochemical noise technique was made with a conventional three-electrode cell, using a saturated calomel as a reference electrode. Data were recorded at 1024 s, at 1 data per second in a 3.5 wt. % NaCl electrolyte, according to ASTM G199-09. The results show how AHSS CP 780 presented uniform corrosion, similarly to the phosphate sample; however, the E-coat presented a trend of a localized process when analyzed by Wavelets transform. On the other hand, corrosion resistance increased for the E-coat sample, with values of 2.58 × 10<sup>6</sup> Ω·cm<sup>2</sup>. According to the results of the research, all the samples are susceptible to present localized corrosion. |
| format | Article |
| id | doaj-art-b3994db2da984c58add47d36fb74de60 |
| institution | Kabale University |
| issn | 2075-4701 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj-art-b3994db2da984c58add47d36fb74de602025-01-24T13:41:33ZengMDPI AGMetals2075-47012025-01-011515910.3390/met15010059A Study of the Corrosion Behavior of AHSS Complex-Phase CP 780 Employing an Electrochemical Noise Technique Analyzed by Different MethodsMaria Lara-Banda0Facundo Almeraya-Calderón1Jesús Manuel Jáquez-Muñoz2Demetrio Nieves-Mendoza3Miguel Angel Baltazar-Zamora4Javier Olguín-Coca5Francisco Estupiñan-Lopez6Jose Cabral Miramontes7Griselda Santiago-Hurtado8Citlalli Gaona-Tiburcio9Centro de Investigación e Innovación en Ingeniería Aeronáutica (CIIIA), s/n, Faculty of Mechanical and Electrical Engineering, Universidad Autonoma de Nuevo Leon, Ciudad Universitaria, San Nicolás de los Garza 66455, MexicoCentro de Investigación e Innovación en Ingeniería Aeronáutica (CIIIA), s/n, Faculty of Mechanical and Electrical Engineering, Universidad Autonoma de Nuevo Leon, Ciudad Universitaria, San Nicolás de los Garza 66455, MexicoInstituto Tecnológico de Ciudad Juarez, Av. Tecnológico, 1340, Ciudad Juárez 32500, MexicoFacultad de Ingeniería Civil, Universidad Veracruzana, Xalapa 91000, MexicoFacultad de Ingeniería Civil, Universidad Veracruzana, Xalapa 91000, MexicoÁrea Académica de Ingeniería y Arquitectura, Universidad Autónoma del Estado de Hidalgo, Carretera Pachuca-Tulancingo Km. 4.5., Pachuca 42082, MexicoCentro de Investigación e Innovación en Ingeniería Aeronáutica (CIIIA), s/n, Faculty of Mechanical and Electrical Engineering, Universidad Autonoma de Nuevo Leon, Ciudad Universitaria, San Nicolás de los Garza 66455, MexicoCentro de Investigación e Innovación en Ingeniería Aeronáutica (CIIIA), s/n, Faculty of Mechanical and Electrical Engineering, Universidad Autonoma de Nuevo Leon, Ciudad Universitaria, San Nicolás de los Garza 66455, MexicoFacultad de Ingeniería Civil, Universidad Autónoma de Coahuila, Torreón 27276, MexicoCentro de Investigación e Innovación en Ingeniería Aeronáutica (CIIIA), s/n, Faculty of Mechanical and Electrical Engineering, Universidad Autonoma de Nuevo Leon, Ciudad Universitaria, San Nicolás de los Garza 66455, MexicoThe automotive industry employs structural steels with E-coats to reduce weight and increase the corrosion resistance of chassis, reducing CO<sub>2</sub> emissions. Due to their mechanical properties, part of the chassis is a composite of advanced high-strength steels (AHSS). AHSSs are coated by conversion methods such as phosphate to increase epoxy coating adherence and corrosion resistance. The main point of this research is to characterize an AHSS complex-phase (CP) 780 in blank, with a phosphate coating and an E-coat organic coating using electrochemical noise, employing time-domain, frequency-domain, time–frequency-domain, and chaotic system methods to determine the type and corrosion kinetics of each system. The electrochemical noise technique was made with a conventional three-electrode cell, using a saturated calomel as a reference electrode. Data were recorded at 1024 s, at 1 data per second in a 3.5 wt. % NaCl electrolyte, according to ASTM G199-09. The results show how AHSS CP 780 presented uniform corrosion, similarly to the phosphate sample; however, the E-coat presented a trend of a localized process when analyzed by Wavelets transform. On the other hand, corrosion resistance increased for the E-coat sample, with values of 2.58 × 10<sup>6</sup> Ω·cm<sup>2</sup>. According to the results of the research, all the samples are susceptible to present localized corrosion.https://www.mdpi.com/2075-4701/15/1/59E-coatelectrochemical noisechaos theorycorrosionAHSSs |
| spellingShingle | Maria Lara-Banda Facundo Almeraya-Calderón Jesús Manuel Jáquez-Muñoz Demetrio Nieves-Mendoza Miguel Angel Baltazar-Zamora Javier Olguín-Coca Francisco Estupiñan-Lopez Jose Cabral Miramontes Griselda Santiago-Hurtado Citlalli Gaona-Tiburcio A Study of the Corrosion Behavior of AHSS Complex-Phase CP 780 Employing an Electrochemical Noise Technique Analyzed by Different Methods Metals E-coat electrochemical noise chaos theory corrosion AHSSs |
| title | A Study of the Corrosion Behavior of AHSS Complex-Phase CP 780 Employing an Electrochemical Noise Technique Analyzed by Different Methods |
| title_full | A Study of the Corrosion Behavior of AHSS Complex-Phase CP 780 Employing an Electrochemical Noise Technique Analyzed by Different Methods |
| title_fullStr | A Study of the Corrosion Behavior of AHSS Complex-Phase CP 780 Employing an Electrochemical Noise Technique Analyzed by Different Methods |
| title_full_unstemmed | A Study of the Corrosion Behavior of AHSS Complex-Phase CP 780 Employing an Electrochemical Noise Technique Analyzed by Different Methods |
| title_short | A Study of the Corrosion Behavior of AHSS Complex-Phase CP 780 Employing an Electrochemical Noise Technique Analyzed by Different Methods |
| title_sort | study of the corrosion behavior of ahss complex phase cp 780 employing an electrochemical noise technique analyzed by different methods |
| topic | E-coat electrochemical noise chaos theory corrosion AHSSs |
| url | https://www.mdpi.com/2075-4701/15/1/59 |
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