Evaluation of Passive Films on 17-7PH and 410 Stainless Steel Exposed to NaCl Solution
Martínez Aparicio, Brisa Selene y Gaona Tiburcio, Citlalli y Almeraya Calderón, Facundo y Goldsberry, Reece y Castaneda, Homero (2024) Evaluation of Passive Films on 17-7PH and 410 Stainless Steel Exposed to NaCl Solution. Materials, 17 (16). pp. 1-18. ISSN 1996-1944
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Texto
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Resumen
This work covers the formation of a passive state for two different alloys used in the aeronautical industry. The aim of this study is to investigate the effectiveness of passivation treatments on 17-7PH and 410 SS (stainless steel) samples, specifically when performed with citric and nitric acid solutions at 49 °C using an immersion time of 90 min and subsequent exposure in 3.5 wt.% NaCl solution. Employing the cyclic potentiodynamic polarization (CPP) technique, the corrosion properties of the passivated material were evaluated according to the ASTM G65-11 standard. A microstructural analysis was performed using scanning electron microscopy (SEM). The passivated layer was characterized via X-ray photoelectron spectroscopy. In the results, the CPP curves showed positive hysteresis, indicating pitting localized corrosion, and 17-7PH steel passivated at 49 °C for 90 min in citric acid exhibited lower corrosion rate values equivalent to ×10−3 mm/year.
Tipo de elemento: | Article | ||||||||||||||||||
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Palabras claves no controlados: | Protección contra la corrosión; Pasivación; 17-7PH; 410 SS; Película pasiva; XPS | ||||||||||||||||||
Materias: | T Tecnología > TA Ingeniería General y Civil | ||||||||||||||||||
Divisiones: | Ingeniería Mecánica y Eléctrica > Doctorado en Ciencias de la Ingeniería Aeronáutica | ||||||||||||||||||
Usuario depositante: | Dra Citlalli Gaona | ||||||||||||||||||
Creadores: |
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Fecha del depósito: | 19 Ago 2024 20:56 | ||||||||||||||||||
Última modificación: | 19 Ago 2024 20:56 | ||||||||||||||||||
URI: | http://eprints.uanl.mx/id/eprint/27948 |
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