Preprint Article Version 1 This version is not peer-reviewed

Electrochemical Behavior of Plasma Nitrided Austenitic Stainless Steel in Chloride Solutions

Version 1 : Received: 11 July 2024 / Approved: 11 July 2024 / Online: 12 July 2024 (04:25:32 CEST)

How to cite: Zatkalíková, V.; Drímalová, P.; Balin, K.; Slezák, M.; Markovičová, L. Electrochemical Behavior of Plasma Nitrided Austenitic Stainless Steel in Chloride Solutions. Preprints 2024, 2024070971. https://doi.org/10.20944/preprints202407.0971.v1 Zatkalíková, V.; Drímalová, P.; Balin, K.; Slezák, M.; Markovičová, L. Electrochemical Behavior of Plasma Nitrided Austenitic Stainless Steel in Chloride Solutions. Preprints 2024, 2024070971. https://doi.org/10.20944/preprints202407.0971.v1

Abstract

The application possibilities of austenitic stainless steels in high friction, abrasion and sliding wear conditions are limited by their inadequate hardness and tribological characteristics. In order to improve these properties, thermochemical treatment of their surface by plasma nitriding is suitable. This article is focused on corrosion resistance of the conventionally plasma nitrided AISI 304 stainless steel (530 °C, 24 hours) in 0.05 M and 0.5 M sodium chloride solutions at room temperature (20 ± 3 °C), tested by potentiodynamic polarization and electrochemical impedance spectroscopy. The optical microscopy, scanning electron microscopy, energy-dispersive X-ray spectroscopy and X-ray photoelectron spectroscopy are used for the nitrided layer characterization. The experiment results point to a significant reduction in corrosion resistance after performed plasma nitriding even in a solution with a very low chloride concentration (0.05 mol/L).

Keywords

austenitic stainless steel; plasma nitriding; corrosion resistance; potentiodynamic polarization; electrochemical impedance spectroscopy

Subject

Chemistry and Materials Science, Materials Science and Technology

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.

Leave a public comment
Send a private comment to the author(s)
* All users must log in before leaving a comment
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.