Mechanical and metallurgical properties of DP 1000 steel square butt welded joints with GMAW
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/127043 |
Resumo: | In this work, Gas Metal Arc Welding (GMAW) was used to study the influence of heat input (i.e. cooling rate) on mechanical/metallurgical properties of square butt welded joints of DP 1000 sheets. The influence of filler metals of different strengths on the mechanical properties of joints was also tested. A significant decrease in hardness was observed in the Heat Affected Zone (HAZ) due to martensite tempering, in regions where peak temperature was close to isotherm AC1 (calculated in 735 oC for these steel); coincidently, fracture in every tensile test occurred in regions where martensite was tempered, even when a wire of less strength was used. It was noticed that the decrease in ultimate tensile and yield strength of base metal was inherent to welding. When minimum heat input was used, deterioration in mechanical properties was less pronounced, once degree of HAZ softening was smaller. Elongation of joints increased with increasing heat input. |
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Rocha, Ianto Cáceres LeiteMachado, Ivan GuerraMazzaferro, Cintia Cristiane Petry2015-09-23T01:58:41Z20152227-524Xhttp://hdl.handle.net/10183/127043000972148In this work, Gas Metal Arc Welding (GMAW) was used to study the influence of heat input (i.e. cooling rate) on mechanical/metallurgical properties of square butt welded joints of DP 1000 sheets. The influence of filler metals of different strengths on the mechanical properties of joints was also tested. A significant decrease in hardness was observed in the Heat Affected Zone (HAZ) due to martensite tempering, in regions where peak temperature was close to isotherm AC1 (calculated in 735 oC for these steel); coincidently, fracture in every tensile test occurred in regions where martensite was tempered, even when a wire of less strength was used. It was noticed that the decrease in ultimate tensile and yield strength of base metal was inherent to welding. When minimum heat input was used, deterioration in mechanical properties was less pronounced, once degree of HAZ softening was smaller. Elongation of joints increased with increasing heat input.application/pdfengInternational journal of engineering & technology [recurso eletrônico]. Bremen, Germany. Vol. 4, no. 1 (2015), p. 26-34AçoJuntas soldadasMicroestruturaPropriedades mecânicasSoldagemWeldingDual phase (DP 1000) steelMicrostructuresSofteningMechanical propertiesMechanical and metallurgical properties of DP 1000 steel square butt welded joints with GMAWEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT000972148.pdf.txt000972148.pdf.txtExtracted Texttext/plain27476http://www.lume.ufrgs.br/bitstream/10183/127043/2/000972148.pdf.txtf4f9215fb7d5ac9833f87878d1e13331MD52ORIGINAL000972148.pdf000972148.pdfTexto completo (inglês)application/pdf797499http://www.lume.ufrgs.br/bitstream/10183/127043/1/000972148.pdfcc417cbef17bef9019ba0da0c3e73f5aMD51THUMBNAIL000972148.pdf.jpg000972148.pdf.jpgGenerated Thumbnailimage/jpeg1722http://www.lume.ufrgs.br/bitstream/10183/127043/3/000972148.pdf.jpga953a166e913afc1556c13d4b65c27b1MD5310183/1270432018-10-24 08:55:16.109oai:www.lume.ufrgs.br:10183/127043Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2018-10-24T11:55:16Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Mechanical and metallurgical properties of DP 1000 steel square butt welded joints with GMAW |
title |
Mechanical and metallurgical properties of DP 1000 steel square butt welded joints with GMAW |
spellingShingle |
Mechanical and metallurgical properties of DP 1000 steel square butt welded joints with GMAW Rocha, Ianto Cáceres Leite Aço Juntas soldadas Microestrutura Propriedades mecânicas Soldagem Welding Dual phase (DP 1000) steel Microstructures Softening Mechanical properties |
title_short |
Mechanical and metallurgical properties of DP 1000 steel square butt welded joints with GMAW |
title_full |
Mechanical and metallurgical properties of DP 1000 steel square butt welded joints with GMAW |
title_fullStr |
Mechanical and metallurgical properties of DP 1000 steel square butt welded joints with GMAW |
title_full_unstemmed |
Mechanical and metallurgical properties of DP 1000 steel square butt welded joints with GMAW |
title_sort |
Mechanical and metallurgical properties of DP 1000 steel square butt welded joints with GMAW |
author |
Rocha, Ianto Cáceres Leite |
author_facet |
Rocha, Ianto Cáceres Leite Machado, Ivan Guerra Mazzaferro, Cintia Cristiane Petry |
author_role |
author |
author2 |
Machado, Ivan Guerra Mazzaferro, Cintia Cristiane Petry |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Rocha, Ianto Cáceres Leite Machado, Ivan Guerra Mazzaferro, Cintia Cristiane Petry |
dc.subject.por.fl_str_mv |
Aço Juntas soldadas Microestrutura Propriedades mecânicas Soldagem |
topic |
Aço Juntas soldadas Microestrutura Propriedades mecânicas Soldagem Welding Dual phase (DP 1000) steel Microstructures Softening Mechanical properties |
dc.subject.eng.fl_str_mv |
Welding Dual phase (DP 1000) steel Microstructures Softening Mechanical properties |
description |
In this work, Gas Metal Arc Welding (GMAW) was used to study the influence of heat input (i.e. cooling rate) on mechanical/metallurgical properties of square butt welded joints of DP 1000 sheets. The influence of filler metals of different strengths on the mechanical properties of joints was also tested. A significant decrease in hardness was observed in the Heat Affected Zone (HAZ) due to martensite tempering, in regions where peak temperature was close to isotherm AC1 (calculated in 735 oC for these steel); coincidently, fracture in every tensile test occurred in regions where martensite was tempered, even when a wire of less strength was used. It was noticed that the decrease in ultimate tensile and yield strength of base metal was inherent to welding. When minimum heat input was used, deterioration in mechanical properties was less pronounced, once degree of HAZ softening was smaller. Elongation of joints increased with increasing heat input. |
publishDate |
2015 |
dc.date.accessioned.fl_str_mv |
2015-09-23T01:58:41Z |
dc.date.issued.fl_str_mv |
2015 |
dc.type.driver.fl_str_mv |
Estrangeiro 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://hdl.handle.net/10183/127043 |
dc.identifier.issn.pt_BR.fl_str_mv |
2227-524X |
dc.identifier.nrb.pt_BR.fl_str_mv |
000972148 |
identifier_str_mv |
2227-524X 000972148 |
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http://hdl.handle.net/10183/127043 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
International journal of engineering & technology [recurso eletrônico]. Bremen, Germany. Vol. 4, no. 1 (2015), p. 26-34 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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