Corrosion Resistance at High Temperature of NiCrAlY and NiCrFeNbMoTiAl Coatings Deposited by APS
The corrosion at high temperature in pipes used in steam generating equipment (boilers), has been recognized as a serious problem, that results in the pipes thinning and therefore the equipments failure. In the last decade there has been a rise in investigations involving protective coatings to help...
| Main Authors: | , , |
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| Format: | Online |
| Language: | spa |
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Universidad Pedagógica y Tecnológica de Colombia
2014
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| Online Access: | https://revistas.uptc.edu.co/index.php/ingenieria/article/view/3155 |
| _version_ | 1801706068433174528 |
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| author | Tristancho-Reyes, José Luis Chacón-Nava, José Guadalupe Almeraya-Calderón, Facundo |
| author_facet | Tristancho-Reyes, José Luis Chacón-Nava, José Guadalupe Almeraya-Calderón, Facundo |
| author_sort | Tristancho-Reyes, José Luis |
| collection | OJS |
| description | The corrosion at high temperature in pipes used in steam generating equipment (boilers), has been recognized as a serious problem, that results in the pipes thinning and therefore the equipments failure. In the last decade there has been a rise in investigations involving protective coatings to help, in some way to extend the useful life of these equipments. This investigation determined the NiCrFeNbMoTiAl and NiCrAlY coatings behavior, deposited by plasma-assisted thermal projection spraying (APS) on the alloy SA213 T22 (2¼Cr -1Mo), in acorrosive environment of 80 % V2O5- 20 % K2SO4 to 800 °C. The kinetics corrosion values were determined by linear polarization resistance (LPR) and electrochemical impedance spectroscopy (EIS). The results obtained show a lower kinetic corrosion on the NiCrFeNbMoTiAl coating than the NiCrAlY coating, confirmed by the SEM, Scanning Electron Microscopy. |
| format | Online |
| id | oai:oai.revistas.uptc.edu.co:article-3155 |
| institution | Revista Facultad de Ingeniería |
| language | spa |
| publishDate | 2014 |
| publisher | Universidad Pedagógica y Tecnológica de Colombia |
| record_format | ojs |
| spelling | oai:oai.revistas.uptc.edu.co:article-31552018-11-21T00:54:50Z Corrosion Resistance at High Temperature of NiCrAlY and NiCrFeNbMoTiAl Coatings Deposited by APS Resistencia a la corrosión a alta temperatura de recubrimientos NiCrAlY y NiCrFeNbMoTiAl depositados por APS Tristancho-Reyes, José Luis Chacón-Nava, José Guadalupe Almeraya-Calderón, Facundo hot corrosion electrochemical coatings APS Corrosión a alta temperatura Electroquímica Recubrimientos APS The corrosion at high temperature in pipes used in steam generating equipment (boilers), has been recognized as a serious problem, that results in the pipes thinning and therefore the equipments failure. In the last decade there has been a rise in investigations involving protective coatings to help, in some way to extend the useful life of these equipments. This investigation determined the NiCrFeNbMoTiAl and NiCrAlY coatings behavior, deposited by plasma-assisted thermal projection spraying (APS) on the alloy SA213 T22 (2¼Cr -1Mo), in acorrosive environment of 80 % V2O5- 20 % K2SO4 to 800 °C. The kinetics corrosion values were determined by linear polarization resistance (LPR) and electrochemical impedance spectroscopy (EIS). The results obtained show a lower kinetic corrosion on the NiCrFeNbMoTiAl coating than the NiCrAlY coating, confirmed by the SEM, Scanning Electron Microscopy. La corrosión a alta temperatura de las tuberías utilizadas en equipos generadores de vapor (calderas) ha sido reconocida como un grave problema que trae consigo el adelgazamiento de éstas y, por consiguiente, la falla de los equipos. En la última década se han incrementado las investigaciones que involucran recubrimientos protectores que ayudan de alguna manera a prolongar la vida útil de estos equipos. Esta investigación determinó el comportamiento de los recubrimientos NiCrAlY y NiCrFeNbMoTiAl depositados por proyección térmica asistida por plasma (APS) sobre la aleación SA213 – T22 (2¼Cr – 1Mo), en un ambiente corrosivo de 80%V2O5–20%K2SO4 a 800°C. Los valores de la cinética de corrosión fueron determinados mediante resistencia a la polarización lineal (RPL) y espectroscopia de impedancia electroquímica (EIE). Los resultados obtenidos muestran una menor cinética de corrosión en el recubrimiento NiCrFeNbMoTiAl que la presentada por el recubrimiento NiCrAlY, corroborado por Microscopia Electrónica de Barrido (MEB). Universidad Pedagógica y Tecnológica de Colombia 2014-12-28 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/3155 10.19053/01211129.3155 Revista Facultad de Ingeniería; Vol. 24 No. 38 (2015); 21-27 Revista Facultad de Ingeniería; Vol. 24 Núm. 38 (2015); 21-27 2357-5328 0121-1129 spa https://revistas.uptc.edu.co/index.php/ingenieria/article/view/3155/2847 https://revistas.uptc.edu.co/index.php/ingenieria/article/view/3155/4342 |
| spellingShingle | hot corrosion electrochemical coatings APS Corrosión a alta temperatura Electroquímica Recubrimientos APS Tristancho-Reyes, José Luis Chacón-Nava, José Guadalupe Almeraya-Calderón, Facundo Corrosion Resistance at High Temperature of NiCrAlY and NiCrFeNbMoTiAl Coatings Deposited by APS |
| title | Corrosion Resistance at High Temperature of NiCrAlY and NiCrFeNbMoTiAl Coatings Deposited by APS |
| title_alt | Resistencia a la corrosión a alta temperatura de recubrimientos NiCrAlY y NiCrFeNbMoTiAl depositados por APS |
| title_full | Corrosion Resistance at High Temperature of NiCrAlY and NiCrFeNbMoTiAl Coatings Deposited by APS |
| title_fullStr | Corrosion Resistance at High Temperature of NiCrAlY and NiCrFeNbMoTiAl Coatings Deposited by APS |
| title_full_unstemmed | Corrosion Resistance at High Temperature of NiCrAlY and NiCrFeNbMoTiAl Coatings Deposited by APS |
| title_short | Corrosion Resistance at High Temperature of NiCrAlY and NiCrFeNbMoTiAl Coatings Deposited by APS |
| title_sort | corrosion resistance at high temperature of nicraly and nicrfenbmotial coatings deposited by aps |
| topic | hot corrosion electrochemical coatings APS Corrosión a alta temperatura Electroquímica Recubrimientos APS |
| topic_facet | hot corrosion electrochemical coatings APS Corrosión a alta temperatura Electroquímica Recubrimientos APS |
| url | https://revistas.uptc.edu.co/index.php/ingenieria/article/view/3155 |
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