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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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2013/723725 |
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| _version_ | 1832566805850226688 |
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| author | Stoja Rešković Ivan Jandrlić |
| author_facet | Stoja Rešković Ivan Jandrlić |
| author_sort | Stoja Rešković |
| collection | DOAJ |
| 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. |
| format | Article |
| id | doaj-art-2a2ae3624f8e4c468255f889a43f2339 |
| institution | Kabale University |
| issn | 1537-744X |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-2a2ae3624f8e4c468255f889a43f23392025-02-03T01:03:05ZengWileyThe Scientific World Journal1537-744X2013-01-01201310.1155/2013/723725723725Influence of Niobium on the Beginning of the Plastic Flow of Material during Cold DeformationStoja Rešković0Ivan Jandrlić1University of Zagreb, Faculty of Metallurgy, Aleja Narodnih Heroja 3, 44103 Sisak, CroatiaUniversity of Zagreb, Faculty of Metallurgy, Aleja Narodnih Heroja 3, 44103 Sisak, CroatiaInvestigations 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.http://dx.doi.org/10.1155/2013/723725 |
| spellingShingle | Stoja Rešković Ivan Jandrlić Influence of Niobium on the Beginning of the Plastic Flow of Material during Cold Deformation The Scientific World Journal |
| 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 |
| url | http://dx.doi.org/10.1155/2013/723725 |
| work_keys_str_mv | AT stojareskovic influenceofniobiumonthebeginningoftheplasticflowofmaterialduringcolddeformation AT ivanjandrlic influenceofniobiumonthebeginningoftheplasticflowofmaterialduringcolddeformation |