The Effect of Hybrid Treatment Combining Boriding and Nanobainitising on the Tribological and Mechanical Properties of 66SiMnCrMo6-6-4 Bearing Steel

The effect of a new hybrid heat treatment consisting of pack-boriding and nanobainitising on the microstructure and properties of EN 66SiMnCrMo6-6-4 bearing steel was investigated. The hybrid treatment produces a new high-strength (ca. 1480 MPa) material with a hard boride (ca. 2000 HV0.05) surface...

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Autores principales: Łukaszewicz, Grzegorz, Tacikowski, Michał, Kulka, Michał, Chmielarz, Krzysztof, Świątnicki, Wiesław A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10180232/
https://www.ncbi.nlm.nih.gov/pubmed/37176318
http://dx.doi.org/10.3390/ma16093436
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author Łukaszewicz, Grzegorz
Tacikowski, Michał
Kulka, Michał
Chmielarz, Krzysztof
Świątnicki, Wiesław A.
author_facet Łukaszewicz, Grzegorz
Tacikowski, Michał
Kulka, Michał
Chmielarz, Krzysztof
Świątnicki, Wiesław A.
author_sort Łukaszewicz, Grzegorz
collection PubMed
description The effect of a new hybrid heat treatment consisting of pack-boriding and nanobainitising on the microstructure and properties of EN 66SiMnCrMo6-6-4 bearing steel was investigated. The hybrid treatment produces a new high-strength (ca. 1480 MPa) material with a hard boride (ca. 2000 HV0.05) surface layer and a relatively ductile nanobainitic core. The formation of the boride layer significantly improves wear resistance. The boride layer, which is hard but susceptible to cracking, reduces the mechanical properties under tensile and impact loads. However, the borided and nanobainitised steel exhibits much higher tensile strength and ductility and slightly better impact toughness than steel after post-boriding quenching and tempering.
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spelling pubmed-101802322023-05-13 The Effect of Hybrid Treatment Combining Boriding and Nanobainitising on the Tribological and Mechanical Properties of 66SiMnCrMo6-6-4 Bearing Steel Łukaszewicz, Grzegorz Tacikowski, Michał Kulka, Michał Chmielarz, Krzysztof Świątnicki, Wiesław A. Materials (Basel) Article The effect of a new hybrid heat treatment consisting of pack-boriding and nanobainitising on the microstructure and properties of EN 66SiMnCrMo6-6-4 bearing steel was investigated. The hybrid treatment produces a new high-strength (ca. 1480 MPa) material with a hard boride (ca. 2000 HV0.05) surface layer and a relatively ductile nanobainitic core. The formation of the boride layer significantly improves wear resistance. The boride layer, which is hard but susceptible to cracking, reduces the mechanical properties under tensile and impact loads. However, the borided and nanobainitised steel exhibits much higher tensile strength and ductility and slightly better impact toughness than steel after post-boriding quenching and tempering. MDPI 2023-04-28 /pmc/articles/PMC10180232/ /pubmed/37176318 http://dx.doi.org/10.3390/ma16093436 Text en © 2023 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
Łukaszewicz, Grzegorz
Tacikowski, Michał
Kulka, Michał
Chmielarz, Krzysztof
Świątnicki, Wiesław A.
The Effect of Hybrid Treatment Combining Boriding and Nanobainitising on the Tribological and Mechanical Properties of 66SiMnCrMo6-6-4 Bearing Steel
title The Effect of Hybrid Treatment Combining Boriding and Nanobainitising on the Tribological and Mechanical Properties of 66SiMnCrMo6-6-4 Bearing Steel
title_full The Effect of Hybrid Treatment Combining Boriding and Nanobainitising on the Tribological and Mechanical Properties of 66SiMnCrMo6-6-4 Bearing Steel
title_fullStr The Effect of Hybrid Treatment Combining Boriding and Nanobainitising on the Tribological and Mechanical Properties of 66SiMnCrMo6-6-4 Bearing Steel
title_full_unstemmed The Effect of Hybrid Treatment Combining Boriding and Nanobainitising on the Tribological and Mechanical Properties of 66SiMnCrMo6-6-4 Bearing Steel
title_short The Effect of Hybrid Treatment Combining Boriding and Nanobainitising on the Tribological and Mechanical Properties of 66SiMnCrMo6-6-4 Bearing Steel
title_sort effect of hybrid treatment combining boriding and nanobainitising on the tribological and mechanical properties of 66simncrmo6-6-4 bearing steel
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10180232/
https://www.ncbi.nlm.nih.gov/pubmed/37176318
http://dx.doi.org/10.3390/ma16093436
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