Corrosion resistance of nitrogenated high-carbon martensitic stainless steel designed and produced at nitrogen low pressures
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Published:2023-12-01
Issue:4
Volume:22
Page:
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ISSN:1657-4583
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Container-title:Revista UIS Ingenierías
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language:
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Short-container-title:Rev. UIS ing.
Author:
Coha-Vesga Pablo MiguelORCID,
Yuuki-Koga GuilhermeORCID,
Mendoza-Oliveros Martín EmilioORCID,
Gil-Coury FranciscoORCID,
Mujica-Roncery LaisORCID
Abstract
A new martensitic stainless steel with high nitrogen and carbon content at low pressures was designed using the CALPHAD method. The chemical composition of the steel was checked by optical emission spectrometry, obtaining 0.17 wt%-N and 1.33 wt%-C. Scanning electron microscopy (SEM) analyses were carried out for microstructural characterization. The properties of the steel were assessed by Rockwell hardness and potentiodynamic polarization tests in 0.6M NaCl. The steel showed maximum hardness values of 60 HRC, regarded as a hard material. However, the passive film formation was prevented by the high carbon content promoting excessive Cr-rich carbides.
Publisher
Universidad Industrial de Santander
Subject
Pulmonary and Respiratory Medicine,Pediatrics, Perinatology and Child Health