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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URL o página oficial: https://doi.org/10.3390/ma17164060

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

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:

Creador	Email	ORCID
Martínez Aparicio, Brisa Selene	NO ESPECIFICADO	NO ESPECIFICADO
Gaona Tiburcio, Citlalli	citlalli.gaonatbr@uanl.edu.mx	orcid.org/0000-0001-9072-3090
Almeraya Calderón, Facundo	facundo.almerayacl@uanl.edu.mx	orcid.org/0000-0002-3014-2814
Goldsberry, Reece	NO ESPECIFICADO	NO ESPECIFICADO
Castaneda, Homero	NO ESPECIFICADO	NO ESPECIFICADO