Recovery of passivation (ROP) in high-nitrogen martensitic stainless steel: Preventing loss of passivation (LOP) via heat treatment

In this work, chromium depletion and its attenuation at different tempering temperatures dictated the loss and recovery of passivation of a novel hard high-nitrogen martensitic stainless steel (HNMSS) with a significant carbon content (0.7 wt%). During tempering from 300 to 600 °C, low temperatures...

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Main Authors: Pablo Miguel Coha-Vesga, Francisco Gil Coury, Guilherme Yuuki Koga, Martín Emilio Mendoza-Oliveros, Lais Mujica-Roncery
Format: Article
Language:English
Published: Elsevier 2025-09-01
Series:Journal of Materials Research and Technology
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Online Access:http://www.sciencedirect.com/science/article/pii/S2238785425020496
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author Pablo Miguel Coha-Vesga
Francisco Gil Coury
Guilherme Yuuki Koga
Martín Emilio Mendoza-Oliveros
Lais Mujica-Roncery
author_facet Pablo Miguel Coha-Vesga
Francisco Gil Coury
Guilherme Yuuki Koga
Martín Emilio Mendoza-Oliveros
Lais Mujica-Roncery
author_sort Pablo Miguel Coha-Vesga
collection DOAJ
description In this work, chromium depletion and its attenuation at different tempering temperatures dictated the loss and recovery of passivation of a novel hard high-nitrogen martensitic stainless steel (HNMSS) with a significant carbon content (0.7 wt%). During tempering from 300 to 600 °C, low temperatures induced little loss of corrosion resistance due to the reduced occurrence of secondary carbides, while intermediate temperatures around 500 °C caused expanded Cr-depleted regions around the carbides, leading to a collapse in corrosion resistance attributed to the loss of passivation (LOP) occurrence. Tempering at higher temperatures, despite promoting Cr-enriched carbides, facilitated the recovery of passivation (ROP) as the diffusion processes of Cr from the martensitic matrix are enhanced at elevated temperatures, restoring much of the initial corrosion resistance of the as-quenched alloy. This work contributes to the design of HNMSS with a balanced combination of mechanical and electrochemical properties, which are essential for ensuring durable tools that are exposed to corrosion and wear threats.
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publishDate 2025-09-01
publisher Elsevier
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series Journal of Materials Research and Technology
spelling doaj-art-c4f09f783e6e45cc8766290d4701abb42025-08-23T04:48:33ZengElsevierJournal of Materials Research and Technology2238-78542025-09-01382935294910.1016/j.jmrt.2025.08.096Recovery of passivation (ROP) in high-nitrogen martensitic stainless steel: Preventing loss of passivation (LOP) via heat treatmentPablo Miguel Coha-Vesga0Francisco Gil Coury1Guilherme Yuuki Koga2Martín Emilio Mendoza-Oliveros3Lais Mujica-Roncery4Universidad Pedagógica y Tecnológica de Colombia, Grupo de Investigación en Materiales Siderúrgicos, sede Tunja, Avenida Central del Norte # 39-115, ColombiaFederal University of São Carlos, Department of Materials Science and Engineering, Rod. Washington Luis, São Carlos, SP, CEP 13565–905, BrazilFederal University of São Carlos, Department of Materials Science and Engineering, Rod. Washington Luis, São Carlos, SP, CEP 13565–905, Brazil; Corresponding author.Universidad Pedagógica y Tecnológica de Colombia, Grupo de Investigación en Metalurgia Física de Procesos de Manufactura, sede Tunja, Avenida Central del Norte # 39-115, ColombiaUniversidad Pedagógica y Tecnológica de Colombia, Grupo de Investigación en Materiales Siderúrgicos, sede Tunja, Avenida Central del Norte # 39-115, Colombia; Corresponding author.In this work, chromium depletion and its attenuation at different tempering temperatures dictated the loss and recovery of passivation of a novel hard high-nitrogen martensitic stainless steel (HNMSS) with a significant carbon content (0.7 wt%). During tempering from 300 to 600 °C, low temperatures induced little loss of corrosion resistance due to the reduced occurrence of secondary carbides, while intermediate temperatures around 500 °C caused expanded Cr-depleted regions around the carbides, leading to a collapse in corrosion resistance attributed to the loss of passivation (LOP) occurrence. Tempering at higher temperatures, despite promoting Cr-enriched carbides, facilitated the recovery of passivation (ROP) as the diffusion processes of Cr from the martensitic matrix are enhanced at elevated temperatures, restoring much of the initial corrosion resistance of the as-quenched alloy. This work contributes to the design of HNMSS with a balanced combination of mechanical and electrochemical properties, which are essential for ensuring durable tools that are exposed to corrosion and wear threats.http://www.sciencedirect.com/science/article/pii/S2238785425020496Martensitic stainless steelPassivityCorrosionHeat treatmentCALPHAD
spellingShingle Pablo Miguel Coha-Vesga
Francisco Gil Coury
Guilherme Yuuki Koga
Martín Emilio Mendoza-Oliveros
Lais Mujica-Roncery
Recovery of passivation (ROP) in high-nitrogen martensitic stainless steel: Preventing loss of passivation (LOP) via heat treatment
Journal of Materials Research and Technology
Martensitic stainless steel
Passivity
Corrosion
Heat treatment
CALPHAD
title Recovery of passivation (ROP) in high-nitrogen martensitic stainless steel: Preventing loss of passivation (LOP) via heat treatment
title_full Recovery of passivation (ROP) in high-nitrogen martensitic stainless steel: Preventing loss of passivation (LOP) via heat treatment
title_fullStr Recovery of passivation (ROP) in high-nitrogen martensitic stainless steel: Preventing loss of passivation (LOP) via heat treatment
title_full_unstemmed Recovery of passivation (ROP) in high-nitrogen martensitic stainless steel: Preventing loss of passivation (LOP) via heat treatment
title_short Recovery of passivation (ROP) in high-nitrogen martensitic stainless steel: Preventing loss of passivation (LOP) via heat treatment
title_sort recovery of passivation rop in high nitrogen martensitic stainless steel preventing loss of passivation lop via heat treatment
topic Martensitic stainless steel
Passivity
Corrosion
Heat treatment
CALPHAD
url http://www.sciencedirect.com/science/article/pii/S2238785425020496
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