The Microstructure and Microscopic Mechanical Performance of Welded Joint for 9%Ni Steel Using Nickel-Based Filler Metal

Detalhes bibliográficos
Autor(a) principal: Li,Xiaoquan
Data de Publicação: 2021
Outros Autores: Chen,Yixing, Hao,Benxing, Han,Yujun, Chu,Yajie, Zhang,Jianzhong
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392021000500224
Resumo: Abstract Shielded metal arc butt welded joints for 9%Ni steel using nickel-based filler metal were analyzed by optical microscopy, scanning electron microscope, as well as transmission electron microscopy. The nanoindentation method was used to study the correlation between the structure and micromechanical properties of the fusion welded joint. The results show that there is a microstructural evolution from melted deposit to 9%Ni base steel. A significant coarse lath martensite-bainite mixture has been obtained in 9%Ni steel close to the fusion boundary while the retained austenite distributing in grain boundary of lath martensite has reduced to an undetectable level. In fusion boundary, an intermetallic layer has been observed which corresponds to the epitaxial growth of weld metal. The analysis of stress-strain behavior using nanoindentation shows that the heat-affected zone of coarse grains exhibits ductility loss and quantitative plastic deformation failure. The fusion boundary has the lowest value of yield stress while the coarse grained heat affected zone has the maximum value of yield stress.
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spelling The Microstructure and Microscopic Mechanical Performance of Welded Joint for 9%Ni Steel Using Nickel-Based Filler Metal9%Ni steelwelded jointnickel-based alloymicrostructuremicroscope mechanicsnanindentationAbstract Shielded metal arc butt welded joints for 9%Ni steel using nickel-based filler metal were analyzed by optical microscopy, scanning electron microscope, as well as transmission electron microscopy. The nanoindentation method was used to study the correlation between the structure and micromechanical properties of the fusion welded joint. The results show that there is a microstructural evolution from melted deposit to 9%Ni base steel. A significant coarse lath martensite-bainite mixture has been obtained in 9%Ni steel close to the fusion boundary while the retained austenite distributing in grain boundary of lath martensite has reduced to an undetectable level. In fusion boundary, an intermetallic layer has been observed which corresponds to the epitaxial growth of weld metal. The analysis of stress-strain behavior using nanoindentation shows that the heat-affected zone of coarse grains exhibits ductility loss and quantitative plastic deformation failure. The fusion boundary has the lowest value of yield stress while the coarse grained heat affected zone has the maximum value of yield stress.ABM, ABC, ABPol2021-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392021000500224Materials Research v.24 n.5 2021reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1980-5373-mr-2020-0527info:eu-repo/semantics/openAccessLi,XiaoquanChen,YixingHao,BenxingHan,YujunChu,YajieZhang,Jianzhongeng2021-08-30T00:00:00Zoai:scielo:S1516-14392021000500224Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2021-08-30T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv The Microstructure and Microscopic Mechanical Performance of Welded Joint for 9%Ni Steel Using Nickel-Based Filler Metal
title The Microstructure and Microscopic Mechanical Performance of Welded Joint for 9%Ni Steel Using Nickel-Based Filler Metal
spellingShingle The Microstructure and Microscopic Mechanical Performance of Welded Joint for 9%Ni Steel Using Nickel-Based Filler Metal
Li,Xiaoquan
9%Ni steel
welded joint
nickel-based alloy
microstructure
microscope mechanics
nanindentation
title_short The Microstructure and Microscopic Mechanical Performance of Welded Joint for 9%Ni Steel Using Nickel-Based Filler Metal
title_full The Microstructure and Microscopic Mechanical Performance of Welded Joint for 9%Ni Steel Using Nickel-Based Filler Metal
title_fullStr The Microstructure and Microscopic Mechanical Performance of Welded Joint for 9%Ni Steel Using Nickel-Based Filler Metal
title_full_unstemmed The Microstructure and Microscopic Mechanical Performance of Welded Joint for 9%Ni Steel Using Nickel-Based Filler Metal
title_sort The Microstructure and Microscopic Mechanical Performance of Welded Joint for 9%Ni Steel Using Nickel-Based Filler Metal
author Li,Xiaoquan
author_facet Li,Xiaoquan
Chen,Yixing
Hao,Benxing
Han,Yujun
Chu,Yajie
Zhang,Jianzhong
author_role author
author2 Chen,Yixing
Hao,Benxing
Han,Yujun
Chu,Yajie
Zhang,Jianzhong
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Li,Xiaoquan
Chen,Yixing
Hao,Benxing
Han,Yujun
Chu,Yajie
Zhang,Jianzhong
dc.subject.por.fl_str_mv 9%Ni steel
welded joint
nickel-based alloy
microstructure
microscope mechanics
nanindentation
topic 9%Ni steel
welded joint
nickel-based alloy
microstructure
microscope mechanics
nanindentation
description Abstract Shielded metal arc butt welded joints for 9%Ni steel using nickel-based filler metal were analyzed by optical microscopy, scanning electron microscope, as well as transmission electron microscopy. The nanoindentation method was used to study the correlation between the structure and micromechanical properties of the fusion welded joint. The results show that there is a microstructural evolution from melted deposit to 9%Ni base steel. A significant coarse lath martensite-bainite mixture has been obtained in 9%Ni steel close to the fusion boundary while the retained austenite distributing in grain boundary of lath martensite has reduced to an undetectable level. In fusion boundary, an intermetallic layer has been observed which corresponds to the epitaxial growth of weld metal. The analysis of stress-strain behavior using nanoindentation shows that the heat-affected zone of coarse grains exhibits ductility loss and quantitative plastic deformation failure. The fusion boundary has the lowest value of yield stress while the coarse grained heat affected zone has the maximum value of yield stress.
publishDate 2021
dc.date.none.fl_str_mv 2021-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392021000500224
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392021000500224
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1980-5373-mr-2020-0527
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.24 n.5 2021
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
_version_ 1754212679159906304

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