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Influence of Pulsed Arc Parameters on the Tig Welding Process for the Stainless Steel Duplex UNS S31803

The influence of parameters involved in the pulsed electric arc, used as an energy source in the tungsten inert gas (TIG)-mediated welding of Duplex UNS S31803 stainless steel, to attend the manufacture of flexible pipes for the extraction of oil and gas is presented. A fundamental part in the manuf...

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Autores principales: Generoso, Vinicius Marques Alves, de Souza, Lucas Menezes, Pereira, Elaine Cristina, Monteiro, Sergio N., de Azevedo, Afonso R. G.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10650920/
https://www.ncbi.nlm.nih.gov/pubmed/37959467
http://dx.doi.org/10.3390/ma16216870
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author Generoso, Vinicius Marques Alves
de Souza, Lucas Menezes
Pereira, Elaine Cristina
Monteiro, Sergio N.
de Azevedo, Afonso R. G.
author_facet Generoso, Vinicius Marques Alves
de Souza, Lucas Menezes
Pereira, Elaine Cristina
Monteiro, Sergio N.
de Azevedo, Afonso R. G.
author_sort Generoso, Vinicius Marques Alves
collection PubMed
description The influence of parameters involved in the pulsed electric arc, used as an energy source in the tungsten inert gas (TIG)-mediated welding of Duplex UNS S31803 stainless steel, to attend the manufacture of flexible pipes for the extraction of oil and gas is presented. A fundamental part in the manufacturing process of flexible pipelines is the welding of these strips so that corresponding TIG welds will be subjected to the same process and work conditions. Therefore, it is necessary to maintain the same properties in the welded regions. Covering the effects of each parameter of the pulsed electric arc such as peak and base current as welds, cyclic ratio, and pulsation frequency is a desirable endeavor. The final objective is the mitigation of problems that have a great impact on production, such as weld breakage during the conformation of the strip in the process and test failures. With this, tensile, bending, and ferrite percentage tests were performed on 12 samples that qualified as satisfactory in the visual aspect. A minimum tensile strength of 734.57 MPa and a maximum of 775.77 MPa were obtained where all values found are above the tensile strength limit of the base material of 620 MPa. With the completion of the study, it is possible to understand not only the response of the process to each parameter but also the tendency when changing them. Moreover, it is possible to explore the possibility of guiding the changes to achieve results about the visual aspect and the mechanical properties of the welded material.
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spelling pubmed-106509202023-10-26 Influence of Pulsed Arc Parameters on the Tig Welding Process for the Stainless Steel Duplex UNS S31803 Generoso, Vinicius Marques Alves de Souza, Lucas Menezes Pereira, Elaine Cristina Monteiro, Sergio N. de Azevedo, Afonso R. G. Materials (Basel) Article The influence of parameters involved in the pulsed electric arc, used as an energy source in the tungsten inert gas (TIG)-mediated welding of Duplex UNS S31803 stainless steel, to attend the manufacture of flexible pipes for the extraction of oil and gas is presented. A fundamental part in the manufacturing process of flexible pipelines is the welding of these strips so that corresponding TIG welds will be subjected to the same process and work conditions. Therefore, it is necessary to maintain the same properties in the welded regions. Covering the effects of each parameter of the pulsed electric arc such as peak and base current as welds, cyclic ratio, and pulsation frequency is a desirable endeavor. The final objective is the mitigation of problems that have a great impact on production, such as weld breakage during the conformation of the strip in the process and test failures. With this, tensile, bending, and ferrite percentage tests were performed on 12 samples that qualified as satisfactory in the visual aspect. A minimum tensile strength of 734.57 MPa and a maximum of 775.77 MPa were obtained where all values found are above the tensile strength limit of the base material of 620 MPa. With the completion of the study, it is possible to understand not only the response of the process to each parameter but also the tendency when changing them. Moreover, it is possible to explore the possibility of guiding the changes to achieve results about the visual aspect and the mechanical properties of the welded material. MDPI 2023-10-26 /pmc/articles/PMC10650920/ /pubmed/37959467 http://dx.doi.org/10.3390/ma16216870 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Generoso, Vinicius Marques Alves
de Souza, Lucas Menezes
Pereira, Elaine Cristina
Monteiro, Sergio N.
de Azevedo, Afonso R. G.
Influence of Pulsed Arc Parameters on the Tig Welding Process for the Stainless Steel Duplex UNS S31803
title Influence of Pulsed Arc Parameters on the Tig Welding Process for the Stainless Steel Duplex UNS S31803
title_full Influence of Pulsed Arc Parameters on the Tig Welding Process for the Stainless Steel Duplex UNS S31803
title_fullStr Influence of Pulsed Arc Parameters on the Tig Welding Process for the Stainless Steel Duplex UNS S31803
title_full_unstemmed Influence of Pulsed Arc Parameters on the Tig Welding Process for the Stainless Steel Duplex UNS S31803
title_short Influence of Pulsed Arc Parameters on the Tig Welding Process for the Stainless Steel Duplex UNS S31803
title_sort influence of pulsed arc parameters on the tig welding process for the stainless steel duplex uns s31803
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10650920/
https://www.ncbi.nlm.nih.gov/pubmed/37959467
http://dx.doi.org/10.3390/ma16216870
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