Frequency Analysis of Transients in Electrochemical Noise of Superalloys Waspaloy and Ultimet
Nickel or Cobalt-based superalloys represent an important class of engineering materials, finding widespread application in critical components within the gas turbine engines used for jet propulsion and electricity generation. This research aimed at the frequency analysis of transients in electroche...
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| Formato: | Artículo |
| Lenguaje: | inglés |
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Molecular Diversity Preservation International
2021
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| Acceso en línea: | http://eprints.uanl.mx/25153/2/25153.pdf |
| _version_ | 1836640490396581888 |
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| author | Jáquez Muñoz, Jesús Manuel Gaona Tiburcio, Citlalli Cabral Miramontes, José Ángel Nieves Mendoza, Demetrio Maldonado Bandala, Erick Olguín Coca, Javier Estupiñan López, Francisco Humberto López León, Luis Daimir Chacón Nava, José G. Almeraya Calderón, Facundo |
| author_facet | Jáquez Muñoz, Jesús Manuel Gaona Tiburcio, Citlalli Cabral Miramontes, José Ángel Nieves Mendoza, Demetrio Maldonado Bandala, Erick Olguín Coca, Javier Estupiñan López, Francisco Humberto López León, Luis Daimir Chacón Nava, José G. Almeraya Calderón, Facundo |
| author_sort | Jáquez Muñoz, Jesús Manuel |
| collection | Repositorio Institucional |
| description | Nickel or Cobalt-based superalloys represent an important class of engineering materials, finding widespread application in critical components within the gas turbine engines used for jet propulsion and electricity generation. This research aimed at the frequency analysis of transients in electrochemical noise of Waspaloy and Ultimet superalloys, immersed in 3.5 wt.% in H2SO4 and NaCl solutions at two different temperatures, 25 and 60 °C. Localized corrosion behavior of superalloys was assessed using the electrochemical noise technique (EN) according to ASTM-G199 standard. Three different statistical methods filtered the EN signal, and the polynomial method was employed to obtain the noise resistance (Rn), the localization index (LI), skew and kurtosis, and the power spectral density analysis (PSD). Results indicate that the current and potential noise transients have a better behavior with better clarity when a polynomial is used to show a localized corrosion kurtosis for both superalloys. |
| format | Article |
| id | eprints-25153 |
| institution | UANL |
| language | English |
| publishDate | 2021 |
| publisher | Molecular Diversity Preservation International |
| record_format | eprints |
| spelling | eprints-251532025-07-03T14:24:10Z http://eprints.uanl.mx/25153/ Frequency Analysis of Transients in Electrochemical Noise of Superalloys Waspaloy and Ultimet Jáquez Muñoz, Jesús Manuel Gaona Tiburcio, Citlalli Cabral Miramontes, José Ángel Nieves Mendoza, Demetrio Maldonado Bandala, Erick Olguín Coca, Javier Estupiñan López, Francisco Humberto López León, Luis Daimir Chacón Nava, José G. Almeraya Calderón, Facundo Ingeniería y Tecnología TA Ingeniería General y Civil Nickel or Cobalt-based superalloys represent an important class of engineering materials, finding widespread application in critical components within the gas turbine engines used for jet propulsion and electricity generation. This research aimed at the frequency analysis of transients in electrochemical noise of Waspaloy and Ultimet superalloys, immersed in 3.5 wt.% in H2SO4 and NaCl solutions at two different temperatures, 25 and 60 °C. Localized corrosion behavior of superalloys was assessed using the electrochemical noise technique (EN) according to ASTM-G199 standard. Three different statistical methods filtered the EN signal, and the polynomial method was employed to obtain the noise resistance (Rn), the localization index (LI), skew and kurtosis, and the power spectral density analysis (PSD). Results indicate that the current and potential noise transients have a better behavior with better clarity when a polynomial is used to show a localized corrosion kurtosis for both superalloys. Molecular Diversity Preservation International 2021-04-25 Article PeerReviewed text en cc_by_nc_nd http://eprints.uanl.mx/25153/2/25153.pdf http://eprints.uanl.mx/25153/2.haspreviewThumbnailVersion/25153.pdf Jáquez Muñoz, Jesús Manuel y Gaona Tiburcio, Citlalli y Cabral Miramontes, José Ángel y Nieves Mendoza, Demetrio y Maldonado Bandala, Erick y Olguín Coca, Javier y Estupiñan López, Francisco Humberto y López León, Luis Daimir y Chacón Nava, José G. y Almeraya Calderón, Facundo (2021) Frequency Analysis of Transients in Electrochemical Noise of Superalloys Waspaloy and Ultimet. Metals, 11 (5). pp. 1-20. ISSN 2075-4701 https://doi.org/10.3390/met11050702 https://doi.org/10.3390/met11050702 |
| spellingShingle | Ingeniería y Tecnología TA Ingeniería General y Civil Jáquez Muñoz, Jesús Manuel Gaona Tiburcio, Citlalli Cabral Miramontes, José Ángel Nieves Mendoza, Demetrio Maldonado Bandala, Erick Olguín Coca, Javier Estupiñan López, Francisco Humberto López León, Luis Daimir Chacón Nava, José G. Almeraya Calderón, Facundo Frequency Analysis of Transients in Electrochemical Noise of Superalloys Waspaloy and Ultimet |
| thumbnail | https://rediab.uanl.mx/themes/sandal5/images/online.png |
| title | Frequency Analysis of Transients in Electrochemical Noise of Superalloys Waspaloy and Ultimet |
| title_full | Frequency Analysis of Transients in Electrochemical Noise of Superalloys Waspaloy and Ultimet |
| title_fullStr | Frequency Analysis of Transients in Electrochemical Noise of Superalloys Waspaloy and Ultimet |
| title_full_unstemmed | Frequency Analysis of Transients in Electrochemical Noise of Superalloys Waspaloy and Ultimet |
| title_short | Frequency Analysis of Transients in Electrochemical Noise of Superalloys Waspaloy and Ultimet |
| title_sort | frequency analysis of transients in electrochemical noise of superalloys waspaloy and ultimet |
| topic | Ingeniería y Tecnología TA Ingeniería General y Civil |
| url | http://eprints.uanl.mx/25153/2/25153.pdf |
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