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Possibilities of the Utilization of Ferritic Nitrocarburizing on Case-Hardening Steels
This paper is devoted to the possibilities of the utilization of chosen chemical heat treatment technologies on steels used for manufacturing highly stressed components of military vehicles and weapons systems. The technologies chosen for this research are plasma ferritic nitrocarburizing and ferrit...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8269847/ https://www.ncbi.nlm.nih.gov/pubmed/34279286 http://dx.doi.org/10.3390/ma14133714 |
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author | Prochazka, Jiri Pokorny, Zdenek Jasenak, Jozef Majerik, Jozef Neumann, Vlastimil |
author_facet | Prochazka, Jiri Pokorny, Zdenek Jasenak, Jozef Majerik, Jozef Neumann, Vlastimil |
author_sort | Prochazka, Jiri |
collection | PubMed |
description | This paper is devoted to the possibilities of the utilization of chosen chemical heat treatment technologies on steels used for manufacturing highly stressed components of military vehicles and weapons systems. The technologies chosen for this research are plasma ferritic nitrocarburizing and ferritic nitrocarburizing in a gaseous atmosphere. These technologies were applied on a steel equivalent 1.5752 (i.e., CSN 41 6426), which is suitable for carburizing. Chemical composition of the steel was verified by optical emission spectrometry. An observation of a microstructure and an assessment of the parameters of obtained white layers were performed by optical microscopy. Morphology and porosity of the surface were observed by electron microscopy. The depth of diffusion layers was evaluated in accordance with ISO 18203:2016(E) from the results of microhardness measurements. A friction coefficient was obtained as a result of measurements in accordance with a linearly reciprocating ball-on-flat sliding wear method. Wear resistance was assessed by employing the scratch test method and a profilometry. The profilometry was also utilized for surface roughness assessment. It was proved that both tested chemical heat treatment technologies are suitable for surface treatment of the selected steel. Both technologies, ferritic nitrocarburizing in plasma and a gaseous atmosphere, are beneficial for the improvement of surface properties and could lead to a suppression of geometrical deformation in comparison with frequently utilized carburizing. Moreover, the paper presents a procedure that creates a white layer-less ferritic nitrocarburized surface by utilizing an appropriate modification of chemical heat treatment parameters, thus subsequent machining is no longer required. |
format | Online Article Text |
id | pubmed-8269847 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-82698472021-07-10 Possibilities of the Utilization of Ferritic Nitrocarburizing on Case-Hardening Steels Prochazka, Jiri Pokorny, Zdenek Jasenak, Jozef Majerik, Jozef Neumann, Vlastimil Materials (Basel) Article This paper is devoted to the possibilities of the utilization of chosen chemical heat treatment technologies on steels used for manufacturing highly stressed components of military vehicles and weapons systems. The technologies chosen for this research are plasma ferritic nitrocarburizing and ferritic nitrocarburizing in a gaseous atmosphere. These technologies were applied on a steel equivalent 1.5752 (i.e., CSN 41 6426), which is suitable for carburizing. Chemical composition of the steel was verified by optical emission spectrometry. An observation of a microstructure and an assessment of the parameters of obtained white layers were performed by optical microscopy. Morphology and porosity of the surface were observed by electron microscopy. The depth of diffusion layers was evaluated in accordance with ISO 18203:2016(E) from the results of microhardness measurements. A friction coefficient was obtained as a result of measurements in accordance with a linearly reciprocating ball-on-flat sliding wear method. Wear resistance was assessed by employing the scratch test method and a profilometry. The profilometry was also utilized for surface roughness assessment. It was proved that both tested chemical heat treatment technologies are suitable for surface treatment of the selected steel. Both technologies, ferritic nitrocarburizing in plasma and a gaseous atmosphere, are beneficial for the improvement of surface properties and could lead to a suppression of geometrical deformation in comparison with frequently utilized carburizing. Moreover, the paper presents a procedure that creates a white layer-less ferritic nitrocarburized surface by utilizing an appropriate modification of chemical heat treatment parameters, thus subsequent machining is no longer required. MDPI 2021-07-02 /pmc/articles/PMC8269847/ /pubmed/34279286 http://dx.doi.org/10.3390/ma14133714 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/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/). |
spellingShingle | Article Prochazka, Jiri Pokorny, Zdenek Jasenak, Jozef Majerik, Jozef Neumann, Vlastimil Possibilities of the Utilization of Ferritic Nitrocarburizing on Case-Hardening Steels |
title | Possibilities of the Utilization of Ferritic Nitrocarburizing on Case-Hardening Steels |
title_full | Possibilities of the Utilization of Ferritic Nitrocarburizing on Case-Hardening Steels |
title_fullStr | Possibilities of the Utilization of Ferritic Nitrocarburizing on Case-Hardening Steels |
title_full_unstemmed | Possibilities of the Utilization of Ferritic Nitrocarburizing on Case-Hardening Steels |
title_short | Possibilities of the Utilization of Ferritic Nitrocarburizing on Case-Hardening Steels |
title_sort | possibilities of the utilization of ferritic nitrocarburizing on case-hardening steels |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8269847/ https://www.ncbi.nlm.nih.gov/pubmed/34279286 http://dx.doi.org/10.3390/ma14133714 |
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