Content area

Abstract

Precipitation-hardenable stainless steels (PHSS) are widely used in various applications in the aeronautical industry such in as landing gear supports, actuators, and fasteners, among others. This research aims to study the pitting corrosion behavior of passivated martensitic precipitation-hardening stainless steel, which underwent passivation for 120 min at 25 °C and 50 °C in citric and nitric acid baths before being immersed in solutions containing 1 wt.% sulfuric acid (H2SO4) and 5 wt.% sodium chloride (NaCl). Electrochemical characterization was realized employing electrochemical noise (EN), while microstructural analysis employed scanning electron microscopy (SEM). The result indicates that EN reflects localized pitting corrosion mechanisms. Samples exposed to H2SO4 revealed activation–passivation behavior, whereas those immersed in NaCl exhibited pseudo-passivation, indicative of an unstable oxide film. Current densities in both solutions ranged from 10−3 to 10−5 mA/cm2, confirming susceptibility to localized pitting corrosion in all test conditions. The susceptibility to localized attack is associated with the generation of secondary oxides on the surface.

Details

1009240
Business indexing term
Title
Electrochemical Noise Analysis in Passivated Martensitic Precipitation-Hardening Stainless Steels in H2SO4 and NaCl Solutions
Author
Almeraya-Calderon Facundo 1   VIAFID ORCID Logo  ; Villegas-Tovar, Miguel 1 ; Maldonado-Bandala Erick 2 ; Nieves-Mendoza, Demetrio 2 ; Méndez-Ramírez, Ce Tochtli 2 ; Baltazar-Zamora Miguel Angel 2   VIAFID ORCID Logo  ; Olguín-Coca Javier 3   VIAFID ORCID Logo  ; Lopez-Leon, Luis Daimir 3   VIAFID ORCID Logo  ; Santiago-Hurtado, Griselda 4 ; Almaguer-Cantu Verónica 5 ; Jaquez-Muñoz, Jesus Manuel 6   VIAFID ORCID Logo  ; Gaona-Tiburcio Citlalli 1   VIAFID ORCID Logo 

 Universidad Autónoma de Nuevo León, FIME, Centro de Investigación e Innovación en Ingeniería Aeronáutica (CIIIA), San Nicolás de los Garza 66455, Mexico; [email protected] (F.A.-C.); [email protected] (M.V.-T.) 
 Facultad de Ingeniería Civil, Universidad Veracruzana, Xalapa 91000, Mexico; [email protected] (E.M.-B.); [email protected] (D.N.-M.); [email protected] (M.A.B.-Z.) 
 Área Académica de Ingeniería y Arquitectura, Universidad Autónoma del Estado de Hidalgo, Carretera Pachuca-Tulancingo Km. 4.5., Pachuca 42082, Mexico; [email protected] (J.O.-C.); [email protected] (L.D.L.-L.) 
 Facultad de Ingeniería Civil, Universidad Autónoma de Coahuila, Torreón 27276, Mexico; [email protected] 
 Instituto de Biotecnología, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza 66455, Mexico; [email protected] 
 Centro de Ciencias de la Ingeniera, Universidad Autonóma de Aguascalientes, Aguascalientes 20340, Mexico; [email protected] 
Publication title
Metals; Basel
Volume
15
Issue
8
First page
837
Number of pages
21
Publication year
2025
Publication date
2025
Publisher
MDPI AG
Place of publication
Basel
Country of publication
Switzerland
Publication subject
e-ISSN
20754701
Source type
Scholarly Journal
Language of publication
English
Document type
Journal Article
Publication history
 
 
Online publication date
2025-07-26
Milestone dates
2025-06-19 (Received); 2025-07-24 (Accepted)
Publication history
 
 
   First posting date
26 Jul 2025
ProQuest document ID
3244046715
Document URL
https://www.proquest.com/scholarly-journals/electrochemical-noise-analysis-passivated/docview/3244046715/se-2?accountid=208611
Copyright
© 2025 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.
Last updated
2025-08-27
Database
ProQuest One Academic