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The Effect of Localized Vibration during Welding on the Microstructure and Mechanical Behavior of Steel Welds

The use of vibratory welding is treated with some caution in the industry due to inconsistent beneficiary results. Here, a partial explanation is suggested by the differentiation between global vibrational effects (GVEs) and local vibrational effects (LVEs), and the latter is investigated experiment...

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Detalles Bibliográficos
Autores principales: Ingram, Ehud, Golan, Oz, Haj-Ali, Rami, Eliaz, Noam
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6719122/
https://www.ncbi.nlm.nih.gov/pubmed/31405190
http://dx.doi.org/10.3390/ma12162553
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author Ingram, Ehud
Golan, Oz
Haj-Ali, Rami
Eliaz, Noam
author_facet Ingram, Ehud
Golan, Oz
Haj-Ali, Rami
Eliaz, Noam
author_sort Ingram, Ehud
collection PubMed
description The use of vibratory welding is treated with some caution in the industry due to inconsistent beneficiary results. Here, a partial explanation is suggested by the differentiation between global vibrational effects (GVEs) and local vibrational effects (LVEs), and the latter is investigated experimentally. Two structural plates of steel are welded at three frequency/amplitude combinations using manual gas metal arc welding in an experimental setup that ensures only LVEs. After welding, tensile tests, microhardness tests, and metallurgical characterization are performed locally in the different welding zones and the results are compared to the non-vibrated welds. Novel use of digital image correlation (DIC) is implemented in tensile testing of welded samples, thus enabling the separate determination of local mechanical properties of the base metal, heat-affected zone and fusion zone of the same weld. LVE is found not to promote any distinct difference in weld properties, at least within the vibrational regimes studied. Nevertheless, depending on geometry and structural response, it is explained how vibratory welding may promote residual stress relief due to GVEs of the welded structure.
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spelling pubmed-67191222019-09-10 The Effect of Localized Vibration during Welding on the Microstructure and Mechanical Behavior of Steel Welds Ingram, Ehud Golan, Oz Haj-Ali, Rami Eliaz, Noam Materials (Basel) Article The use of vibratory welding is treated with some caution in the industry due to inconsistent beneficiary results. Here, a partial explanation is suggested by the differentiation between global vibrational effects (GVEs) and local vibrational effects (LVEs), and the latter is investigated experimentally. Two structural plates of steel are welded at three frequency/amplitude combinations using manual gas metal arc welding in an experimental setup that ensures only LVEs. After welding, tensile tests, microhardness tests, and metallurgical characterization are performed locally in the different welding zones and the results are compared to the non-vibrated welds. Novel use of digital image correlation (DIC) is implemented in tensile testing of welded samples, thus enabling the separate determination of local mechanical properties of the base metal, heat-affected zone and fusion zone of the same weld. LVE is found not to promote any distinct difference in weld properties, at least within the vibrational regimes studied. Nevertheless, depending on geometry and structural response, it is explained how vibratory welding may promote residual stress relief due to GVEs of the welded structure. MDPI 2019-08-10 /pmc/articles/PMC6719122/ /pubmed/31405190 http://dx.doi.org/10.3390/ma12162553 Text en © 2019 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ingram, Ehud
Golan, Oz
Haj-Ali, Rami
Eliaz, Noam
The Effect of Localized Vibration during Welding on the Microstructure and Mechanical Behavior of Steel Welds
title The Effect of Localized Vibration during Welding on the Microstructure and Mechanical Behavior of Steel Welds
title_full The Effect of Localized Vibration during Welding on the Microstructure and Mechanical Behavior of Steel Welds
title_fullStr The Effect of Localized Vibration during Welding on the Microstructure and Mechanical Behavior of Steel Welds
title_full_unstemmed The Effect of Localized Vibration during Welding on the Microstructure and Mechanical Behavior of Steel Welds
title_short The Effect of Localized Vibration during Welding on the Microstructure and Mechanical Behavior of Steel Welds
title_sort effect of localized vibration during welding on the microstructure and mechanical behavior of steel welds
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6719122/
https://www.ncbi.nlm.nih.gov/pubmed/31405190
http://dx.doi.org/10.3390/ma12162553
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