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Influence of Niobium on the Beginning of the Plastic Flow of Material during Cold Deformation

Investigations were conducted on low-carbon steel and the steel with same chemical composition with addition of microalloying element niobium. While tensile testing was carried out, the thermographic measurement was tacking place simultaneously. A specific behavior of niobium microalloyed steel was...

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Detalles Bibliográficos
Autores principales: Rešković, Stoja, Jandrlić, Ivan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3881682/
https://www.ncbi.nlm.nih.gov/pubmed/24453896
http://dx.doi.org/10.1155/2013/723725
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author Rešković, Stoja
Jandrlić, Ivan
author_facet Rešković, Stoja
Jandrlić, Ivan
author_sort Rešković, Stoja
collection PubMed
description Investigations were conducted on low-carbon steel and the steel with same chemical composition with addition of microalloying element niobium. While tensile testing was carried out, the thermographic measurement was tacking place simultaneously. A specific behavior of niobium microalloyed steel was noticed. Test results have shown that, in the elastic deformation region, thermoelastic effect occurs, which is more pronounced in niobium microalloyed steel. Start of plastic flow in steel which is not microalloyed with niobium begins later in comparison to the microalloyed steel, and it is conducted so that, at the point of maximum stress, deformation zone is formed within which stresses grow. In steel microalloyed with niobium after proportionality limit, comes the occurrence of the localized increase in temperature and the occurrence of Lüders band, which propagate along the sample forming a deformation zone.
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spelling pubmed-38816822014-01-20 Influence of Niobium on the Beginning of the Plastic Flow of Material during Cold Deformation Rešković, Stoja Jandrlić, Ivan ScientificWorldJournal Research Article Investigations were conducted on low-carbon steel and the steel with same chemical composition with addition of microalloying element niobium. While tensile testing was carried out, the thermographic measurement was tacking place simultaneously. A specific behavior of niobium microalloyed steel was noticed. Test results have shown that, in the elastic deformation region, thermoelastic effect occurs, which is more pronounced in niobium microalloyed steel. Start of plastic flow in steel which is not microalloyed with niobium begins later in comparison to the microalloyed steel, and it is conducted so that, at the point of maximum stress, deformation zone is formed within which stresses grow. In steel microalloyed with niobium after proportionality limit, comes the occurrence of the localized increase in temperature and the occurrence of Lüders band, which propagate along the sample forming a deformation zone. Hindawi Publishing Corporation 2013-12-19 /pmc/articles/PMC3881682/ /pubmed/24453896 http://dx.doi.org/10.1155/2013/723725 Text en Copyright © 2013 S. Rešković and I. Jandrlić. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Rešković, Stoja
Jandrlić, Ivan
Influence of Niobium on the Beginning of the Plastic Flow of Material during Cold Deformation
title Influence of Niobium on the Beginning of the Plastic Flow of Material during Cold Deformation
title_full Influence of Niobium on the Beginning of the Plastic Flow of Material during Cold Deformation
title_fullStr Influence of Niobium on the Beginning of the Plastic Flow of Material during Cold Deformation
title_full_unstemmed Influence of Niobium on the Beginning of the Plastic Flow of Material during Cold Deformation
title_short Influence of Niobium on the Beginning of the Plastic Flow of Material during Cold Deformation
title_sort influence of niobium on the beginning of the plastic flow of material during cold deformation
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3881682/
https://www.ncbi.nlm.nih.gov/pubmed/24453896
http://dx.doi.org/10.1155/2013/723725
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