Improving supermartensitic stainless steel weld metal toughness: eliminating ferrite, maximizing austenite, and softening martensite through PWHT markedly improved toughness with r...

Autores
Zappa Maidana, Norberto Sebastián; Svoboda, Hernán Gabriel; Ramini, Mabel; Surian, Estela Silvia; de Vedia, Luis Alberto
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Welding of supermartensitic stainless steel plays a crucial role in fabricated components, influencing their toughness, weldability and resistance to sulphide stress cracking. Post weld heat treatment adjusts the final properties of the weldments, bearing on microstructural evolution. The objective of this work was to maximize all weld metal toughness by microstructural modifications achieved by means of post-weld heat treatments (PWHTs). Two all-weld metal test coupons were prepared according to standard ANSI/AWS A5.22-95, using a 1.2 mm diameter tubular metal-cored wire under Ar-5%He and Ar-18%CO2 gas shielding mixtures in the flat position, with a nominal heat input of 1.6 kJ mm-1. Single tempering, solution annealing, solution annealing plus single tempering and solution annealing plus double tempering treatments were carried out at different times and temperatures. All-weld metal chemical composition analysis, metallurgical characterization, hardness and tensile property measurements and Charpy-V tests were carried out. It was found that eliminating ferrite, maximizing austenite and softening martensite through PWHT, improved toughness up to almost three times with respect of the as-welded condition, for both shielding gases used.  When welding under Ar-18%CO2 shielding gas, it was detected a) higher all-weld metal contents of C, O and N and slightly lower contents of Mn, Si, Cr, Ni, Mo, Cu; this fact produced slightly lower both ferrite and austenite contents in as-welded condition and b) lower toughness and ductility, and higher strength and hardness, regarding the samples welded under Ar-5%He mixture.
Fil: Zappa Maidana, Norberto Sebastián. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Lomas de Zamora. Facultad de Ingeniería; Argentina
Fil: Svoboda, Hernán Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ingeniería; Argentina
Fil: Ramini, Mabel. Universidad Tecnológica Nacional; Argentina
Fil: Surian, Estela Silvia. No especifíca;
Fil: de Vedia, Luis Alberto. Universidad de Buenos Aires. Facultad de Ingeniería; Argentina
Materia
Super Martensitic Stainless Steel
Welding Procedre
Post Welded Heat Treatmet
Toughness
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/195289
Acceder
id CONICETDig_d800a36a1fa508c8ff48909722f7a1f2
oai_identifier_str oai:ri.conicet.gov.ar:11336/195289
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Improving supermartensitic stainless steel weld metal toughness: eliminating ferrite, maximizing austenite, and softening martensite through PWHT markedly improved toughness with respect to the as-welded conditionZappa Maidana, Norberto SebastiánSvoboda, Hernán GabrielRamini, MabelSurian, Estela Silviade Vedia, Luis AlbertoSuper Martensitic Stainless SteelWelding ProcedrePost Welded Heat TreatmetToughnesshttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2Welding of supermartensitic stainless steel plays a crucial role in fabricated components, influencing their toughness, weldability and resistance to sulphide stress cracking. Post weld heat treatment adjusts the final properties of the weldments, bearing on microstructural evolution. The objective of this work was to maximize all weld metal toughness by microstructural modifications achieved by means of post-weld heat treatments (PWHTs). Two all-weld metal test coupons were prepared according to standard ANSI/AWS A5.22-95, using a 1.2 mm diameter tubular metal-cored wire under Ar-5%He and Ar-18%CO2 gas shielding mixtures in the flat position, with a nominal heat input of 1.6 kJ mm-1. Single tempering, solution annealing, solution annealing plus single tempering and solution annealing plus double tempering treatments were carried out at different times and temperatures. All-weld metal chemical composition analysis, metallurgical characterization, hardness and tensile property measurements and Charpy-V tests were carried out. It was found that eliminating ferrite, maximizing austenite and softening martensite through PWHT, improved toughness up to almost three times with respect of the as-welded condition, for both shielding gases used.  When welding under Ar-18%CO2 shielding gas, it was detected a) higher all-weld metal contents of C, O and N and slightly lower contents of Mn, Si, Cr, Ni, Mo, Cu; this fact produced slightly lower both ferrite and austenite contents in as-welded condition and b) lower toughness and ductility, and higher strength and hardness, regarding the samples welded under Ar-5%He mixture.Fil: Zappa Maidana, Norberto Sebastián. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Lomas de Zamora. Facultad de Ingeniería; ArgentinaFil: Svoboda, Hernán Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ingeniería; ArgentinaFil: Ramini, Mabel. Universidad Tecnológica Nacional; ArgentinaFil: Surian, Estela Silvia. No especifíca;Fil: de Vedia, Luis Alberto. Universidad de Buenos Aires. Facultad de Ingeniería; ArgentinaAmerican Welding Society2012-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/195289Zappa Maidana, Norberto Sebastián; Svoboda, Hernán Gabriel; Ramini, Mabel; Surian, Estela Silvia; de Vedia, Luis Alberto; Improving supermartensitic stainless steel weld metal toughness: eliminating ferrite, maximizing austenite, and softening martensite through PWHT markedly improved toughness with respect to the as-welded condition; American Welding Society; Welding Journal; 91; 3; 3-2012; 83-900043-2296CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.aws.org/publications/page/research-papers-2012info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:46:22Zoai:ri.conicet.gov.ar:11336/195289instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:46:22.3CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Improving supermartensitic stainless steel weld metal toughness: eliminating ferrite, maximizing austenite, and softening martensite through PWHT markedly improved toughness with respect to the as-welded condition
title Improving supermartensitic stainless steel weld metal toughness: eliminating ferrite, maximizing austenite, and softening martensite through PWHT markedly improved toughness with respect to the as-welded condition
spellingShingle Improving supermartensitic stainless steel weld metal toughness: eliminating ferrite, maximizing austenite, and softening martensite through PWHT markedly improved toughness with respect to the as-welded condition
Zappa Maidana, Norberto Sebastián
Super Martensitic Stainless Steel
Welding Procedre
Post Welded Heat Treatmet
Toughness
title_short Improving supermartensitic stainless steel weld metal toughness: eliminating ferrite, maximizing austenite, and softening martensite through PWHT markedly improved toughness with respect to the as-welded condition
title_full Improving supermartensitic stainless steel weld metal toughness: eliminating ferrite, maximizing austenite, and softening martensite through PWHT markedly improved toughness with respect to the as-welded condition
title_fullStr Improving supermartensitic stainless steel weld metal toughness: eliminating ferrite, maximizing austenite, and softening martensite through PWHT markedly improved toughness with respect to the as-welded condition
title_full_unstemmed Improving supermartensitic stainless steel weld metal toughness: eliminating ferrite, maximizing austenite, and softening martensite through PWHT markedly improved toughness with respect to the as-welded condition
title_sort Improving supermartensitic stainless steel weld metal toughness: eliminating ferrite, maximizing austenite, and softening martensite through PWHT markedly improved toughness with respect to the as-welded condition
dc.creator.none.fl_str_mv Zappa Maidana, Norberto Sebastián
Svoboda, Hernán Gabriel
Ramini, Mabel
Surian, Estela Silvia
de Vedia, Luis Alberto
author Zappa Maidana, Norberto Sebastián
author_facet Zappa Maidana, Norberto Sebastián
Svoboda, Hernán Gabriel
Ramini, Mabel
Surian, Estela Silvia
de Vedia, Luis Alberto
author_role author
author2 Svoboda, Hernán Gabriel
Ramini, Mabel
Surian, Estela Silvia
de Vedia, Luis Alberto
author2_role author
author
author
author
dc.subject.none.fl_str_mv Super Martensitic Stainless Steel
Welding Procedre
Post Welded Heat Treatmet
Toughness
topic Super Martensitic Stainless Steel
Welding Procedre
Post Welded Heat Treatmet
Toughness
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Welding of supermartensitic stainless steel plays a crucial role in fabricated components, influencing their toughness, weldability and resistance to sulphide stress cracking. Post weld heat treatment adjusts the final properties of the weldments, bearing on microstructural evolution. The objective of this work was to maximize all weld metal toughness by microstructural modifications achieved by means of post-weld heat treatments (PWHTs). Two all-weld metal test coupons were prepared according to standard ANSI/AWS A5.22-95, using a 1.2 mm diameter tubular metal-cored wire under Ar-5%He and Ar-18%CO2 gas shielding mixtures in the flat position, with a nominal heat input of 1.6 kJ mm-1. Single tempering, solution annealing, solution annealing plus single tempering and solution annealing plus double tempering treatments were carried out at different times and temperatures. All-weld metal chemical composition analysis, metallurgical characterization, hardness and tensile property measurements and Charpy-V tests were carried out. It was found that eliminating ferrite, maximizing austenite and softening martensite through PWHT, improved toughness up to almost three times with respect of the as-welded condition, for both shielding gases used.  When welding under Ar-18%CO2 shielding gas, it was detected a) higher all-weld metal contents of C, O and N and slightly lower contents of Mn, Si, Cr, Ni, Mo, Cu; this fact produced slightly lower both ferrite and austenite contents in as-welded condition and b) lower toughness and ductility, and higher strength and hardness, regarding the samples welded under Ar-5%He mixture.
Fil: Zappa Maidana, Norberto Sebastián. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Lomas de Zamora. Facultad de Ingeniería; Argentina
Fil: Svoboda, Hernán Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ingeniería; Argentina
Fil: Ramini, Mabel. Universidad Tecnológica Nacional; Argentina
Fil: Surian, Estela Silvia. No especifíca;
Fil: de Vedia, Luis Alberto. Universidad de Buenos Aires. Facultad de Ingeniería; Argentina
description Welding of supermartensitic stainless steel plays a crucial role in fabricated components, influencing their toughness, weldability and resistance to sulphide stress cracking. Post weld heat treatment adjusts the final properties of the weldments, bearing on microstructural evolution. The objective of this work was to maximize all weld metal toughness by microstructural modifications achieved by means of post-weld heat treatments (PWHTs). Two all-weld metal test coupons were prepared according to standard ANSI/AWS A5.22-95, using a 1.2 mm diameter tubular metal-cored wire under Ar-5%He and Ar-18%CO2 gas shielding mixtures in the flat position, with a nominal heat input of 1.6 kJ mm-1. Single tempering, solution annealing, solution annealing plus single tempering and solution annealing plus double tempering treatments were carried out at different times and temperatures. All-weld metal chemical composition analysis, metallurgical characterization, hardness and tensile property measurements and Charpy-V tests were carried out. It was found that eliminating ferrite, maximizing austenite and softening martensite through PWHT, improved toughness up to almost three times with respect of the as-welded condition, for both shielding gases used.  When welding under Ar-18%CO2 shielding gas, it was detected a) higher all-weld metal contents of C, O and N and slightly lower contents of Mn, Si, Cr, Ni, Mo, Cu; this fact produced slightly lower both ferrite and austenite contents in as-welded condition and b) lower toughness and ductility, and higher strength and hardness, regarding the samples welded under Ar-5%He mixture.
publishDate 2012
dc.date.none.fl_str_mv 2012-03
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/195289
Zappa Maidana, Norberto Sebastián; Svoboda, Hernán Gabriel; Ramini, Mabel; Surian, Estela Silvia; de Vedia, Luis Alberto; Improving supermartensitic stainless steel weld metal toughness: eliminating ferrite, maximizing austenite, and softening martensite through PWHT markedly improved toughness with respect to the as-welded condition; American Welding Society; Welding Journal; 91; 3; 3-2012; 83-90
0043-2296
CONICET Digital
CONICET
url http://hdl.handle.net/11336/195289
identifier_str_mv Zappa Maidana, Norberto Sebastián; Svoboda, Hernán Gabriel; Ramini, Mabel; Surian, Estela Silvia; de Vedia, Luis Alberto; Improving supermartensitic stainless steel weld metal toughness: eliminating ferrite, maximizing austenite, and softening martensite through PWHT markedly improved toughness with respect to the as-welded condition; American Welding Society; Welding Journal; 91; 3; 3-2012; 83-90
0043-2296
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.aws.org/publications/page/research-papers-2012
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Welding Society
publisher.none.fl_str_mv American Welding Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1842268789640527872
score 13.13397

Publicaciones similares