The Impact of Current and Thermal Loads on the Properties of Copper Contact Wires Used in Railway Transport Systems.
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| Title: | The Impact of Current and Thermal Loads on the Properties of Copper Contact Wires Used in Railway Transport Systems. |
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| Authors: | Mańka, Adam1 (AUTHOR), Aniołek, Krzysztof2 (AUTHOR) krzysztof.aniolek@us.edu.pl, Hełka, Andrzej1 (AUTHOR), Rak, Jan2 (AUTHOR) |
| Source: | Materials (1996-1944). May2026, Vol. 19 Issue 9, p1854. 13p. |
| Subjects: | Copper wire, Railroad electrification, Thermal stresses, Microstructure, Railroads, Mechanical behavior of materials, Deformations (Mechanics), Resistance heating |
| Abstract: | The paper presents the results of investigations of the effect of current heating on the microstructure and properties of copper profile contact wires used in railway traction networks. The aim of the study was to determine the effect of the contact wire temperature rising as a result of current heating on the occurrence of permanent changes in material characteristics. The tests were conducted in laboratory conditions through controlled heating of samples with a current of approx. 1500–1600 A, reaching temperatures of up to approx. 280 °C. It was found that in the temperature range of 120–200 °C, changes in the mechanical properties of the material were insignificant, while above 200 °C, a marked decrease in microhardness and a reduction in the indentation modulus were observed. The results obtained indicate that long-term current load leading to an increase in the temperature of the contact wire may cause deterioration of the mechanical properties of the material, its increased susceptibility to permanent deformation and an increased risk of damage to the traction network, which has a direct impact on the durability of contact wires and the maintenance costs of the rail transport infrastructure. [ABSTRACT FROM AUTHOR] |
| Copyright of Materials (1996-1944) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 193715660 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: The Impact of Current and Thermal Loads on the Properties of Copper Contact Wires Used in Railway Transport Systems. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Mańka%2C+Adam%22">Mańka, Adam</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Aniołek%2C+Krzysztof%22">Aniołek, Krzysztof</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> krzysztof.aniolek@us.edu.pl</i><br /><searchLink fieldCode="AR" term="%22Hełka%2C+Andrzej%22">Hełka, Andrzej</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Rak%2C+Jan%22">Rak, Jan</searchLink><relatesTo>2</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Materials+%281996-1944%29%22">Materials (1996-1944)</searchLink>. May2026, Vol. 19 Issue 9, p1854. 13p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Copper+wire%22">Copper wire</searchLink><br /><searchLink fieldCode="DE" term="%22Railroad+electrification%22">Railroad electrification</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+stresses%22">Thermal stresses</searchLink><br /><searchLink fieldCode="DE" term="%22Microstructure%22">Microstructure</searchLink><br /><searchLink fieldCode="DE" term="%22Railroads%22">Railroads</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+behavior+of+materials%22">Mechanical behavior of materials</searchLink><br /><searchLink fieldCode="DE" term="%22Deformations+%28Mechanics%29%22">Deformations (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Resistance+heating%22">Resistance heating</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The paper presents the results of investigations of the effect of current heating on the microstructure and properties of copper profile contact wires used in railway traction networks. The aim of the study was to determine the effect of the contact wire temperature rising as a result of current heating on the occurrence of permanent changes in material characteristics. The tests were conducted in laboratory conditions through controlled heating of samples with a current of approx. 1500–1600 A, reaching temperatures of up to approx. 280 °C. It was found that in the temperature range of 120–200 °C, changes in the mechanical properties of the material were insignificant, while above 200 °C, a marked decrease in microhardness and a reduction in the indentation modulus were observed. The results obtained indicate that long-term current load leading to an increase in the temperature of the contact wire may cause deterioration of the mechanical properties of the material, its increased susceptibility to permanent deformation and an increased risk of damage to the traction network, which has a direct impact on the durability of contact wires and the maintenance costs of the rail transport infrastructure. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Materials (1996-1944) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=193715660 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3390/ma19091854 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 13 StartPage: 1854 Subjects: – SubjectFull: Copper wire Type: general – SubjectFull: Railroad electrification Type: general – SubjectFull: Thermal stresses Type: general – SubjectFull: Microstructure Type: general – SubjectFull: Railroads Type: general – SubjectFull: Mechanical behavior of materials Type: general – SubjectFull: Deformations (Mechanics) Type: general – SubjectFull: Resistance heating Type: general Titles: – TitleFull: The Impact of Current and Thermal Loads on the Properties of Copper Contact Wires Used in Railway Transport Systems. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Mańka, Adam – PersonEntity: Name: NameFull: Aniołek, Krzysztof – PersonEntity: Name: NameFull: Hełka, Andrzej – PersonEntity: Name: NameFull: Rak, Jan IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 05 Text: May2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 19961944 Numbering: – Type: volume Value: 19 – Type: issue Value: 9 Titles: – TitleFull: Materials (1996-1944) Type: main |
| ResultId | 1 |
