Hot Corrosion Behavior of Ni20Cr Alloy in NaVO3 Molten Salt

The hot corrosion behavior of Ni20Cr alloy was evaluated in NaVO 3 at temperatures of up to 700 °C and compared to Inconel 600. The performance of both the alloys was evaluated using electrochemical measurements, such as potentiodynamic polarization, linear polarization resistance, and electrochemic...

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Veröffentlicht in:	Journal of materials engineering and performance 2019-08, Vol.28 (8), p.5047-5062
Hauptverfasser:	Silva-Leon, P. D., Sotelo-Mazon, O., Salinas-Solano, G., Porcayo-Calderon, J., Gonzalez-Rodriguez, J. G., Valdez, S., Martinez-Gomez, L.
Format:	Artikel
Sprache:	eng
Schlagworte:	Characterization and Evaluation of Materials Chemistry and Materials Science Corrosion and Coatings Engineering Design Materials Science Quality Control Reliability Safety and Risk Tribology
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Beschreibung
Zusammenfassung:	The hot corrosion behavior of Ni20Cr alloy was evaluated in NaVO 3 at temperatures of up to 700 °C and compared to Inconel 600. The performance of both the alloys was evaluated using electrochemical measurements, such as potentiodynamic polarization, linear polarization resistance, and electrochemical impedance spectroscopy measurements, as well as a cyclic corrosion test. The results show that the Ni20Cr alloy has better corrosion performance than the Inconel 600. The better performance of the Ni20Cr alloy was due to its ability to develop a stable protector oxide (Cr 2 O 3 ) on its surface.
ISSN:	1059-9495 1544-1024
DOI:	10.1007/s11665-019-04235-4