Pulsed FCAW of Martensitic Stainless Clads onto Mild Steel: Microstructure, Hardness, and Residual Stresses
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.3390/ma15082715 http://hdl.handle.net/11449/239923 |
Resumo: | The low carbon martensitic stainless AWS 410NiMo steel has in its chemical composition 13% chromium, 4% nickel, and 0.4% molybdenum (wt.%) and is used in turbine recovery, rotors, and high-pressure steam pump housings due to its resistance to impact at low temperatures, as well as to corrosion and cavitation. Those applications of the AWS 410NiMo steel frequently demand repair, which is performed by welding or cladding. Arc welding is a well-established technique for joining materials and presents several parameters that influence the mechanical performance of the weld bead. Although numerous welding processes exist, optimizing welding parameters for specific applications and materials is always challenging. The present work deals with a systematic study to verify the correlation between the pulsed fluxed core arc welding (FCAW) parameters, namely pulse current and frequency, welding speed, and contact tip work distance (CTWD), and the bead morphology, microstructure formation, residual stress, and hardness of the martensitic clad. The substrate used was the AISI 1020 steel, and the AWS 410NiMo steel was the filler metal for clad deposition. From the initial nine (9) samples, three (3) were selected for in-depth characterization. Lower heat input resulted in lower dilution, more elevated hardness, and lower compressive residual stresses. Therefore, the results highlight the need for selecting the proper heat input, even when using a pulsed FCAW procedure, to achieve the desired performance of the clad. In the present case, a higher heat input appears to be more advantageous owing to the lower convexity index, smooth hardness transition between fusion and heat-affected zones in addition to more elevated compressive stresses. |
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Pulsed FCAW of Martensitic Stainless Clads onto Mild Steel: Microstructure, Hardness, and Residual StressescladdingFCAWinterfacewhere(Figurea package10h)morphologyhad an amountof clustersof martensitewas alsoformationformedlowbainiticmagnificationone. The weldviewlineof FZmartensitic stainless steelmechanical propertiesresidual stressesThe low carbon martensitic stainless AWS 410NiMo steel has in its chemical composition 13% chromium, 4% nickel, and 0.4% molybdenum (wt.%) and is used in turbine recovery, rotors, and high-pressure steam pump housings due to its resistance to impact at low temperatures, as well as to corrosion and cavitation. Those applications of the AWS 410NiMo steel frequently demand repair, which is performed by welding or cladding. Arc welding is a well-established technique for joining materials and presents several parameters that influence the mechanical performance of the weld bead. Although numerous welding processes exist, optimizing welding parameters for specific applications and materials is always challenging. The present work deals with a systematic study to verify the correlation between the pulsed fluxed core arc welding (FCAW) parameters, namely pulse current and frequency, welding speed, and contact tip work distance (CTWD), and the bead morphology, microstructure formation, residual stress, and hardness of the martensitic clad. The substrate used was the AISI 1020 steel, and the AWS 410NiMo steel was the filler metal for clad deposition. From the initial nine (9) samples, three (3) were selected for in-depth characterization. Lower heat input resulted in lower dilution, more elevated hardness, and lower compressive residual stresses. Therefore, the results highlight the need for selecting the proper heat input, even when using a pulsed FCAW procedure, to achieve the desired performance of the clad. In the present case, a higher heat input appears to be more advantageous owing to the lower convexity index, smooth hardness transition between fusion and heat-affected zones in addition to more elevated compressive stresses.TU Graz, Internationale Beziehungen und MobilitätsprogrammeConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Mechanical Department Federal Technological University of ParanáMaterials Engineering Department São Carlos School of Engineering University of São PauloInstitute of Engineering Science and Technology Federal University of Vales do Jequitinhonha e MucuriCampus of São Joao da Boa Vista São Paulo State University—UNESPChristian Doppler Laboratory for Design of High-Performance Alloys by Thermomechanical Processing, Kopernikusgasse 24Institute of Materials Science Joining and Forming Graz University of Technology, Kopernikusgasse 24/ICampus of São Joao da Boa Vista São Paulo State University—UNESPCNPq: 150215/2016-9CNPq: 308935/2021-7Federal Technological University of ParanáUniversidade de São Paulo (USP)Federal University of Vales do Jequitinhonha e MucuriUniversidade Estadual Paulista (UNESP)Christian Doppler Laboratory for Design of High-Performance Alloys by Thermomechanical ProcessingGraz University of TechnologyMoreno, Joao SartoriConde, Fabio FariaCorrea, Celso AlvesBarbosa, Luiz HenriqueSilva, Erenilton Pereira daAvila, Julian [UNESP]Buzolin, Ricardo HenriquePinto, Haroldo Cavalcanti2023-03-01T19:53:31Z2023-03-01T19:53:31Z2022-04-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.3390/ma15082715Materials, v. 15, n. 8, 2022.1996-1944http://hdl.handle.net/11449/23992310.3390/ma150827152-s2.0-85128658523Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMaterialsinfo:eu-repo/semantics/openAccess2023-03-01T19:53:32Zoai:repositorio.unesp.br:11449/239923Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:57:16.397411Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Pulsed FCAW of Martensitic Stainless Clads onto Mild Steel: Microstructure, Hardness, and Residual Stresses |
title |
Pulsed FCAW of Martensitic Stainless Clads onto Mild Steel: Microstructure, Hardness, and Residual Stresses |
spellingShingle |
Pulsed FCAW of Martensitic Stainless Clads onto Mild Steel: Microstructure, Hardness, and Residual Stresses Moreno, Joao Sartori cladding FCAW interfacewhere(Figurea package10h)morphologyhad an amountof clustersof martensitewas alsoformationformed lowbainiticmagnificationone. The weldviewlineof FZ martensitic stainless steel mechanical properties residual stresses |
title_short |
Pulsed FCAW of Martensitic Stainless Clads onto Mild Steel: Microstructure, Hardness, and Residual Stresses |
title_full |
Pulsed FCAW of Martensitic Stainless Clads onto Mild Steel: Microstructure, Hardness, and Residual Stresses |
title_fullStr |
Pulsed FCAW of Martensitic Stainless Clads onto Mild Steel: Microstructure, Hardness, and Residual Stresses |
title_full_unstemmed |
Pulsed FCAW of Martensitic Stainless Clads onto Mild Steel: Microstructure, Hardness, and Residual Stresses |
title_sort |
Pulsed FCAW of Martensitic Stainless Clads onto Mild Steel: Microstructure, Hardness, and Residual Stresses |
author |
Moreno, Joao Sartori |
author_facet |
Moreno, Joao Sartori Conde, Fabio Faria Correa, Celso Alves Barbosa, Luiz Henrique Silva, Erenilton Pereira da Avila, Julian [UNESP] Buzolin, Ricardo Henrique Pinto, Haroldo Cavalcanti |
author_role |
author |
author2 |
Conde, Fabio Faria Correa, Celso Alves Barbosa, Luiz Henrique Silva, Erenilton Pereira da Avila, Julian [UNESP] Buzolin, Ricardo Henrique Pinto, Haroldo Cavalcanti |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Federal Technological University of Paraná Universidade de São Paulo (USP) Federal University of Vales do Jequitinhonha e Mucuri Universidade Estadual Paulista (UNESP) Christian Doppler Laboratory for Design of High-Performance Alloys by Thermomechanical Processing Graz University of Technology |
dc.contributor.author.fl_str_mv |
Moreno, Joao Sartori Conde, Fabio Faria Correa, Celso Alves Barbosa, Luiz Henrique Silva, Erenilton Pereira da Avila, Julian [UNESP] Buzolin, Ricardo Henrique Pinto, Haroldo Cavalcanti |
dc.subject.por.fl_str_mv |
cladding FCAW interfacewhere(Figurea package10h)morphologyhad an amountof clustersof martensitewas alsoformationformed lowbainiticmagnificationone. The weldviewlineof FZ martensitic stainless steel mechanical properties residual stresses |
topic |
cladding FCAW interfacewhere(Figurea package10h)morphologyhad an amountof clustersof martensitewas alsoformationformed lowbainiticmagnificationone. The weldviewlineof FZ martensitic stainless steel mechanical properties residual stresses |
description |
The low carbon martensitic stainless AWS 410NiMo steel has in its chemical composition 13% chromium, 4% nickel, and 0.4% molybdenum (wt.%) and is used in turbine recovery, rotors, and high-pressure steam pump housings due to its resistance to impact at low temperatures, as well as to corrosion and cavitation. Those applications of the AWS 410NiMo steel frequently demand repair, which is performed by welding or cladding. Arc welding is a well-established technique for joining materials and presents several parameters that influence the mechanical performance of the weld bead. Although numerous welding processes exist, optimizing welding parameters for specific applications and materials is always challenging. The present work deals with a systematic study to verify the correlation between the pulsed fluxed core arc welding (FCAW) parameters, namely pulse current and frequency, welding speed, and contact tip work distance (CTWD), and the bead morphology, microstructure formation, residual stress, and hardness of the martensitic clad. The substrate used was the AISI 1020 steel, and the AWS 410NiMo steel was the filler metal for clad deposition. From the initial nine (9) samples, three (3) were selected for in-depth characterization. Lower heat input resulted in lower dilution, more elevated hardness, and lower compressive residual stresses. Therefore, the results highlight the need for selecting the proper heat input, even when using a pulsed FCAW procedure, to achieve the desired performance of the clad. In the present case, a higher heat input appears to be more advantageous owing to the lower convexity index, smooth hardness transition between fusion and heat-affected zones in addition to more elevated compressive stresses. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-04-01 2023-03-01T19:53:31Z 2023-03-01T19:53:31Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.3390/ma15082715 Materials, v. 15, n. 8, 2022. 1996-1944 http://hdl.handle.net/11449/239923 10.3390/ma15082715 2-s2.0-85128658523 |
url |
http://dx.doi.org/10.3390/ma15082715 http://hdl.handle.net/11449/239923 |
identifier_str_mv |
Materials, v. 15, n. 8, 2022. 1996-1944 10.3390/ma15082715 2-s2.0-85128658523 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Materials |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129377983004672 |