CCorrosion resistance of nitrogenated high-carbon martensitic stainless steel designed and produced at nitrogen low pressures
| Autor: | Pablo Miguel Coha Vesga, Guilherme Yuuki-Koga, Martín Emilio Mendoza-Oliveros, Francisco Gil-Coury Gil-Coury, Lais Mujica-Roncery |
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| Jazyk: | English<br />Spanish; Castilian |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Revista UIS Ingenierías, Vol 22, Iss 4 (2023) |
| Druh dokumentu: | article |
| ISSN: | 1657-4583 2145-8456 |
| DOI: | 10.18273/revuin.v22n4-2023015 |
| Popis: | 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. |
| Databáze: | Directory of Open Access Journals |
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