Effects of Heat Input and Niobium Addition on HAZ of Microalloyed Steels for Reinforcing Bars
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista soldagem & inspeção (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-92242020000100222 |
Resumo: | Abstract: Niobium or vanadium addition provides homogeneous microstructures formation, strengthening and toughness improvement in steels. However, alloying elements increase can negatively affect Pcm (material parameter) value, which can lead to deleterious effects under welding conditions. Thus, welding trials were carried out on a novel microalloyed steel with 0.2%C by autogenous GTAW (Gas-Shielded Tungsten Arc Welding) process. The results indicate that coarse grains region of heat affected zone (CGHAZ) is the most critical area. This was due abnormal grains size (>100µm), achieving more than 4 times the average size of base metal (BM) grains, or the presence of high hardness microstructures. In addition, the results do not indicate softness in any region of HAZ, proving to be an advantage of these materials. |
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Effects of Heat Input and Niobium Addition on HAZ of Microalloyed Steels for Reinforcing BarsWeldingMicroalloyed steelsHAZHeat inputAbstract: Niobium or vanadium addition provides homogeneous microstructures formation, strengthening and toughness improvement in steels. However, alloying elements increase can negatively affect Pcm (material parameter) value, which can lead to deleterious effects under welding conditions. Thus, welding trials were carried out on a novel microalloyed steel with 0.2%C by autogenous GTAW (Gas-Shielded Tungsten Arc Welding) process. The results indicate that coarse grains region of heat affected zone (CGHAZ) is the most critical area. This was due abnormal grains size (>100µm), achieving more than 4 times the average size of base metal (BM) grains, or the presence of high hardness microstructures. In addition, the results do not indicate softness in any region of HAZ, proving to be an advantage of these materials.Associação Brasileira de Soldagem2020-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-92242020000100222Soldagem & Inspeção v.25 2020reponame:Revista soldagem & inspeção (Online)instname:Associação Brasileira de Soldagem (ABS)instacron:ABS10.1590/0104-9224/si25.31info:eu-repo/semantics/openAccessPrado,Juscelino MendesLino,Roney EduardoVaz,Cláudio Turanieng2020-09-25T00:00:00Zoai:scielo:S0104-92242020000100222Revistahttp://abs-soldagem.org.br/s&i/https://old.scielo.br/oai/scielo-oai.php||revista-si@abs-soldagem.org.br0104-92241980-6973opendoar:2020-09-25T00:00Revista soldagem & inspeção (Online) - Associação Brasileira de Soldagem (ABS)false |
dc.title.none.fl_str_mv |
Effects of Heat Input and Niobium Addition on HAZ of Microalloyed Steels for Reinforcing Bars |
title |
Effects of Heat Input and Niobium Addition on HAZ of Microalloyed Steels for Reinforcing Bars |
spellingShingle |
Effects of Heat Input and Niobium Addition on HAZ of Microalloyed Steels for Reinforcing Bars Prado,Juscelino Mendes Welding Microalloyed steels HAZ Heat input |
title_short |
Effects of Heat Input and Niobium Addition on HAZ of Microalloyed Steels for Reinforcing Bars |
title_full |
Effects of Heat Input and Niobium Addition on HAZ of Microalloyed Steels for Reinforcing Bars |
title_fullStr |
Effects of Heat Input and Niobium Addition on HAZ of Microalloyed Steels for Reinforcing Bars |
title_full_unstemmed |
Effects of Heat Input and Niobium Addition on HAZ of Microalloyed Steels for Reinforcing Bars |
title_sort |
Effects of Heat Input and Niobium Addition on HAZ of Microalloyed Steels for Reinforcing Bars |
author |
Prado,Juscelino Mendes |
author_facet |
Prado,Juscelino Mendes Lino,Roney Eduardo Vaz,Cláudio Turani |
author_role |
author |
author2 |
Lino,Roney Eduardo Vaz,Cláudio Turani |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Prado,Juscelino Mendes Lino,Roney Eduardo Vaz,Cláudio Turani |
dc.subject.por.fl_str_mv |
Welding Microalloyed steels HAZ Heat input |
topic |
Welding Microalloyed steels HAZ Heat input |
description |
Abstract: Niobium or vanadium addition provides homogeneous microstructures formation, strengthening and toughness improvement in steels. However, alloying elements increase can negatively affect Pcm (material parameter) value, which can lead to deleterious effects under welding conditions. Thus, welding trials were carried out on a novel microalloyed steel with 0.2%C by autogenous GTAW (Gas-Shielded Tungsten Arc Welding) process. The results indicate that coarse grains region of heat affected zone (CGHAZ) is the most critical area. This was due abnormal grains size (>100µm), achieving more than 4 times the average size of base metal (BM) grains, or the presence of high hardness microstructures. In addition, the results do not indicate softness in any region of HAZ, proving to be an advantage of these materials. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-01-01 |
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=S0104-92242020000100222 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-92242020000100222 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0104-9224/si25.31 |
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 |
Associação Brasileira de Soldagem |
publisher.none.fl_str_mv |
Associação Brasileira de Soldagem |
dc.source.none.fl_str_mv |
Soldagem & Inspeção v.25 2020 reponame:Revista soldagem & inspeção (Online) instname:Associação Brasileira de Soldagem (ABS) instacron:ABS |
instname_str |
Associação Brasileira de Soldagem (ABS) |
instacron_str |
ABS |
institution |
ABS |
reponame_str |
Revista soldagem & inspeção (Online) |
collection |
Revista soldagem & inspeção (Online) |
repository.name.fl_str_mv |
Revista soldagem & inspeção (Online) - Associação Brasileira de Soldagem (ABS) |
repository.mail.fl_str_mv |
||revista-si@abs-soldagem.org.br |
_version_ |
1754213004399869952 |