Mechanical properties and microstructural characteristics of rotating arc-gas metal arc welded carbon steel joints

The main problem associated with high thickness carbon steel plate's narrow range or “V” groove welding in conventional welding processes is the sagging of the molten pool due to gravity, which in turn leads to defects formation and deteriorates mechanical properties. This problem could be over...

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Autores principales:	Sankar Nallasamy, Malarvizhi Sudersanan, Balasubramanian Visvalingam
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	carbon steel rotating arc welding tensile properties impact toughness microstructural characterisations Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/b2e11b027a66495ea14826cd9e55114b
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spelling	oai:doaj.org-article:b2e11b027a66495ea14826cd9e55114b2021-12-05T14:10:52ZMechanical properties and microstructural characteristics of rotating arc-gas metal arc welded carbon steel joints0334-89382191-024310.1515/jmbm-2021-0006https://doaj.org/article/b2e11b027a66495ea14826cd9e55114b2021-09-01T00:00:00Zhttps://doi.org/10.1515/jmbm-2021-0006https://doaj.org/toc/0334-8938https://doaj.org/toc/2191-0243The main problem associated with high thickness carbon steel plate's narrow range or “V” groove welding in conventional welding processes is the sagging of the molten pool due to gravity, which in turn leads to defects formation and deteriorates mechanical properties. This problem could be overcome by the rotating arc gas metal arc welding (RA-GMAW) technique. This investigation aims to evaluate mechanical properties and metallurgical characteristics of high thickness IS2062 Gr-B carbon steel joints welded by RA-GMAW technique. The experimental results show that RA-GMAW joint exhibited higher (598 MPa) tensile strength, higher hardness (220 HV) at weld metal region, and lower impact toughness (137 J) than the unwelded base metal. This is due to the presence of fine acicular ferrite and widmanstatten ferrite matrix mixed with fine lamellar pearlite microstructure in the weld metal region.Sankar NallasamyMalarvizhi SudersananBalasubramanian VisvalingamDe Gruyterarticlecarbon steelrotating arc weldingtensile propertiesimpact toughnessmicrostructural characterisationsMechanical engineering and machineryTJ1-1570ENJournal of the Mechanical Behavior of Materials, Vol 30, Iss 1, Pp 49-58 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	carbon steel rotating arc welding tensile properties impact toughness microstructural characterisations Mechanical engineering and machinery TJ1-1570
spellingShingle	carbon steel rotating arc welding tensile properties impact toughness microstructural characterisations Mechanical engineering and machinery TJ1-1570 Sankar Nallasamy Malarvizhi Sudersanan Balasubramanian Visvalingam Mechanical properties and microstructural characteristics of rotating arc-gas metal arc welded carbon steel joints
description	The main problem associated with high thickness carbon steel plate's narrow range or “V” groove welding in conventional welding processes is the sagging of the molten pool due to gravity, which in turn leads to defects formation and deteriorates mechanical properties. This problem could be overcome by the rotating arc gas metal arc welding (RA-GMAW) technique. This investigation aims to evaluate mechanical properties and metallurgical characteristics of high thickness IS2062 Gr-B carbon steel joints welded by RA-GMAW technique. The experimental results show that RA-GMAW joint exhibited higher (598 MPa) tensile strength, higher hardness (220 HV) at weld metal region, and lower impact toughness (137 J) than the unwelded base metal. This is due to the presence of fine acicular ferrite and widmanstatten ferrite matrix mixed with fine lamellar pearlite microstructure in the weld metal region.
format	article
author	Sankar Nallasamy Malarvizhi Sudersanan Balasubramanian Visvalingam
author_facet	Sankar Nallasamy Malarvizhi Sudersanan Balasubramanian Visvalingam
author_sort	Sankar Nallasamy
title	Mechanical properties and microstructural characteristics of rotating arc-gas metal arc welded carbon steel joints
title_short	Mechanical properties and microstructural characteristics of rotating arc-gas metal arc welded carbon steel joints
title_full	Mechanical properties and microstructural characteristics of rotating arc-gas metal arc welded carbon steel joints
title_fullStr	Mechanical properties and microstructural characteristics of rotating arc-gas metal arc welded carbon steel joints
title_full_unstemmed	Mechanical properties and microstructural characteristics of rotating arc-gas metal arc welded carbon steel joints
title_sort	mechanical properties and microstructural characteristics of rotating arc-gas metal arc welded carbon steel joints
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/b2e11b027a66495ea14826cd9e55114b
work_keys_str_mv	AT sankarnallasamy mechanicalpropertiesandmicrostructuralcharacteristicsofrotatingarcgasmetalarcweldedcarbonsteeljoints AT malarvizhisudersanan mechanicalpropertiesandmicrostructuralcharacteristicsofrotatingarcgasmetalarcweldedcarbonsteeljoints AT balasubramanianvisvalingam mechanicalpropertiesandmicrostructuralcharacteristicsofrotatingarcgasmetalarcweldedcarbonsteeljoints
_version_	1718371651305865216

Mechanical properties and microstructural characteristics of rotating arc-gas metal arc welded carbon steel joints

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