Evaluation of X-shaped welded joints with Co-Cr alloy under different welding parameters: analysis by micro-CT and flexural strength

Detalhes bibliográficos
Autor(a) principal: Silverio, Morgana Guilherme de Castro
Data de Publicação: 2021
Outros Autores: Raposo, Luís Henrique Araújo, Lopes, Ricardo Tadeu, Simamoto Júnior, Paulo Cézar
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Research, Society and Development
DOI: 10.33448/rsd-v10i4.14308
Texto Completo: https://rsdjournal.org/index.php/rsd/article/view/14308
Resumo: This study evaluated the mechanical strength correlated to the percentage of the total volume of weld and porosities of Co-Cr alloy joints welded with TIG technique. Thirty specimens were perpendicularly sectioned to the long-axis and rejoined by using X30-shaped joint design with TIG welding. They were divided into 3 groups (n=10): the CG1 with a 60-A depth and 90-ms pulse; the CG2 with a 60-A depth and 120-ms pulse and the CG3 with a 60-A depth and 160-ms pulse. The specimens were submitted to nondestructive tests: radiographic inspection, penetrant liquid and Micro- CT (to calculate the percentage of the total volume of welding and the porosities) and then tested with 3-point bending. The fracture surfaces were analyzed with scanning electron microscopy (SEM). The data were statistically analyzed with 1-way ANOVA and the Tukey post hoc test for all the variables which were analyzed: flexural strength, total volume of weld and porosities. Pearson correlation test was also applied (ɑ=.05). The 1-way ANOVA showed that the factors machine parameters were not significant for flexural strength values (P=.231), the total volume of weld (P=.057) and porosities (P=.057). There are no significant relationships between any pair of variables after Pearson correlation test (P >.050). This, suggesting that the three machine regulation can be an option for joining prefabricated Co-Cr rods in this kind of union.
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spelling Evaluation of X-shaped welded joints with Co-Cr alloy under different welding parameters: analysis by micro-CT and flexural strengthEvaluación de uniones soldadas em forma de X con aleación de Co-Cr bajo diferentes parámetros de soldadura: análisis por micro-CT y resistencia a la flexiónAvaliação de juntas soldadas em forma de X com liga de Co-Cr sob diferentes parâmetros de soldagem: análise por micro-CT e resistência à flexão Dental AlloysDental SolderingFlexural strength.Aleaciones dentalesSoldadura dentalFuerza flexible.Ligas metáligasSoldagem dentáriaResistência à flexão.This study evaluated the mechanical strength correlated to the percentage of the total volume of weld and porosities of Co-Cr alloy joints welded with TIG technique. Thirty specimens were perpendicularly sectioned to the long-axis and rejoined by using X30-shaped joint design with TIG welding. They were divided into 3 groups (n=10): the CG1 with a 60-A depth and 90-ms pulse; the CG2 with a 60-A depth and 120-ms pulse and the CG3 with a 60-A depth and 160-ms pulse. The specimens were submitted to nondestructive tests: radiographic inspection, penetrant liquid and Micro- CT (to calculate the percentage of the total volume of welding and the porosities) and then tested with 3-point bending. The fracture surfaces were analyzed with scanning electron microscopy (SEM). The data were statistically analyzed with 1-way ANOVA and the Tukey post hoc test for all the variables which were analyzed: flexural strength, total volume of weld and porosities. Pearson correlation test was also applied (ɑ=.05). The 1-way ANOVA showed that the factors machine parameters were not significant for flexural strength values (P=.231), the total volume of weld (P=.057) and porosities (P=.057). There are no significant relationships between any pair of variables after Pearson correlation test (P >.050). This, suggesting that the three machine regulation can be an option for joining prefabricated Co-Cr rods in this kind of union.Este estudio evaluó la resistencia mecánica, correlacionada con el porcentaje del volumen total de soldadura y la porosidad, de las uniones soldadas con Co-Cr con la técnica TIG en diferentes configuraciones del equipo. Treinta muestras se seccionaron perpendicularmente y se unieron con soldadura TIG con junta en forma de X. Se dividieron en 3 grupos (n = 10): el CG1 con una profundidad de 60 A y un pulso de 90 ms; el CG2 con una profundidad de 60 A y pulso de 120 ms y el CG3 con una profundidad de 60 A y un pulso de 160 ms. Las muestras fueron sometidas a ensayos no destructivos (inspección radiográfica, líquido penetrante y Micro-CT (para calcular el porcentaje del volumen total de soldadura y las porosidades)) y ensayados con flexión de 3 puntos. Las superficies de fractura se analizaron con microscopía electrónica de barrido (SEM). Los datos se analizaron estadísticamente con ANOVA one way y el test post hoc de Tukey para todas las variables analizadas: resistencia a la flexión, volumen total de soldadura y porosidades. También se aplicó la prueba de correlación de Pearson (ɑ = .05). ANOVA one way mostró que los factores parámetros de la máquina no fueron significativos para los valores de resistencia a la flexión (P = .231), el volumen total de soldadura (P = .057) y las porosidades (P = .057). No hay relaciones significativas entre ningún par de variables después de la prueba de correlación de Pearson (P> .050). Esto sugiere que las tres configuraciones del equipo pueden ser una opción para unir barras de Co-Cr prefabricadas en este tipo de unión.Este estudo avaliou a resistência mecânica, correlacionada ao percentual do volume total de solda e porosidades, de juntas soldadas de Co-Cr com a técnica TIG em diferentes regulagens do equipamento. Trinta amostras foram seccionadas perpendicularmente e unidas com soldagem TIG com junta em forma de X. Estas foram divididas em 3 grupos (n = 10): CG1 com profundidade de 60-A e pulso de 90 ms; CG2 com profundidade de 60 A e pulso de 120 ms e CG3 com profundidade de 60 A e pulso de 160 ms. As amostras foram submetidas a ensaios não destrutivos (inspeção radiográfica, líquido penetrante e Micro-CT (para cálculo do percentual do volume total de soldagem e das porosidades)) e ensaio de flexão em 3 pontos. As superfícies das fraturas foram analisadas em microscopia eletrônica de varredura (MEV). Os dados foram analisados ​​estatisticamente com ANOVA one way e teste post hoc de Tukey para todas as variáveis ​​analisadas: resistência à flexão, volume total de solda e porosidades. O teste de correlação de Pearson também foi aplicado (ɑ = 0,05). ANOVA one way mostrou que os fatores regulagem do equipamento não foram significativos para os valores de resistência à flexão (P = .231), volume total de solda (P = .057) e porosidades (P = .057). Não houve relações significativas entre qualquer par de variáveis ​​após o teste de correlação de Pearson (P> 0,050). Isso sugere que as três regulagens do equipamento podem ser uma opção para unir barras pré-fabricadas de Co-Cr neste tipo de união.Research, Society and Development2021-04-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/1430810.33448/rsd-v10i4.14308Research, Society and Development; Vol. 10 No. 4; e44510414308Research, Society and Development; Vol. 10 Núm. 4; e44510414308Research, Society and Development; v. 10 n. 4; e445104143082525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIenghttps://rsdjournal.org/index.php/rsd/article/view/14308/12872Copyright (c) 2021 Morgana Guilherme de Castro Silverio; Luís Henrique Araújo Raposo; Ricardo Tadeu Lopes; Paulo Cézar Simamoto Júniorhttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccess Silverio, Morgana Guilherme de CastroRaposo, Luís Henrique AraújoLopes, Ricardo TadeuSimamoto Júnior, Paulo Cézar 2021-04-25T11:21:26Zoai:ojs.pkp.sfu.ca:article/14308Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:35:27.615654Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false
dc.title.none.fl_str_mv Evaluation of X-shaped welded joints with Co-Cr alloy under different welding parameters: analysis by micro-CT and flexural strength
Evaluación de uniones soldadas em forma de X con aleación de Co-Cr bajo diferentes parámetros de soldadura: análisis por micro-CT y resistencia a la flexión
Avaliação de juntas soldadas em forma de X com liga de Co-Cr sob diferentes parâmetros de soldagem: análise por micro-CT e resistência à flexão
title Evaluation of X-shaped welded joints with Co-Cr alloy under different welding parameters: analysis by micro-CT and flexural strength
spellingShingle Evaluation of X-shaped welded joints with Co-Cr alloy under different welding parameters: analysis by micro-CT and flexural strength
Evaluation of X-shaped welded joints with Co-Cr alloy under different welding parameters: analysis by micro-CT and flexural strength
Silverio, Morgana Guilherme de Castro
Dental Alloys
Dental Soldering
Flexural strength.
Aleaciones dentales
Soldadura dental
Fuerza flexible.
Ligas metáligas
Soldagem dentária
Resistência à flexão.
Silverio, Morgana Guilherme de Castro
Dental Alloys
Dental Soldering
Flexural strength.
Aleaciones dentales
Soldadura dental
Fuerza flexible.
Ligas metáligas
Soldagem dentária
Resistência à flexão.
title_short Evaluation of X-shaped welded joints with Co-Cr alloy under different welding parameters: analysis by micro-CT and flexural strength
title_full Evaluation of X-shaped welded joints with Co-Cr alloy under different welding parameters: analysis by micro-CT and flexural strength
title_fullStr Evaluation of X-shaped welded joints with Co-Cr alloy under different welding parameters: analysis by micro-CT and flexural strength
Evaluation of X-shaped welded joints with Co-Cr alloy under different welding parameters: analysis by micro-CT and flexural strength
title_full_unstemmed Evaluation of X-shaped welded joints with Co-Cr alloy under different welding parameters: analysis by micro-CT and flexural strength
Evaluation of X-shaped welded joints with Co-Cr alloy under different welding parameters: analysis by micro-CT and flexural strength
title_sort Evaluation of X-shaped welded joints with Co-Cr alloy under different welding parameters: analysis by micro-CT and flexural strength
author Silverio, Morgana Guilherme de Castro
author_facet Silverio, Morgana Guilherme de Castro
Silverio, Morgana Guilherme de Castro
Raposo, Luís Henrique Araújo
Lopes, Ricardo Tadeu
Simamoto Júnior, Paulo Cézar
Raposo, Luís Henrique Araújo
Lopes, Ricardo Tadeu
Simamoto Júnior, Paulo Cézar
author_role author
author2 Raposo, Luís Henrique Araújo
Lopes, Ricardo Tadeu
Simamoto Júnior, Paulo Cézar
author2_role author
author
author
dc.contributor.author.fl_str_mv Silverio, Morgana Guilherme de Castro
Raposo, Luís Henrique Araújo
Lopes, Ricardo Tadeu
Simamoto Júnior, Paulo Cézar
dc.subject.por.fl_str_mv Dental Alloys
Dental Soldering
Flexural strength.
Aleaciones dentales
Soldadura dental
Fuerza flexible.
Ligas metáligas
Soldagem dentária
Resistência à flexão.
topic Dental Alloys
Dental Soldering
Flexural strength.
Aleaciones dentales
Soldadura dental
Fuerza flexible.
Ligas metáligas
Soldagem dentária
Resistência à flexão.
description This study evaluated the mechanical strength correlated to the percentage of the total volume of weld and porosities of Co-Cr alloy joints welded with TIG technique. Thirty specimens were perpendicularly sectioned to the long-axis and rejoined by using X30-shaped joint design with TIG welding. They were divided into 3 groups (n=10): the CG1 with a 60-A depth and 90-ms pulse; the CG2 with a 60-A depth and 120-ms pulse and the CG3 with a 60-A depth and 160-ms pulse. The specimens were submitted to nondestructive tests: radiographic inspection, penetrant liquid and Micro- CT (to calculate the percentage of the total volume of welding and the porosities) and then tested with 3-point bending. The fracture surfaces were analyzed with scanning electron microscopy (SEM). The data were statistically analyzed with 1-way ANOVA and the Tukey post hoc test for all the variables which were analyzed: flexural strength, total volume of weld and porosities. Pearson correlation test was also applied (ɑ=.05). The 1-way ANOVA showed that the factors machine parameters were not significant for flexural strength values (P=.231), the total volume of weld (P=.057) and porosities (P=.057). There are no significant relationships between any pair of variables after Pearson correlation test (P >.050). This, suggesting that the three machine regulation can be an option for joining prefabricated Co-Cr rods in this kind of union.
publishDate 2021
dc.date.none.fl_str_mv 2021-04-17
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://rsdjournal.org/index.php/rsd/article/view/14308
10.33448/rsd-v10i4.14308
url https://rsdjournal.org/index.php/rsd/article/view/14308
identifier_str_mv 10.33448/rsd-v10i4.14308
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://rsdjournal.org/index.php/rsd/article/view/14308/12872
dc.rights.driver.fl_str_mv https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Research, Society and Development
publisher.none.fl_str_mv Research, Society and Development
dc.source.none.fl_str_mv Research, Society and Development; Vol. 10 No. 4; e44510414308
Research, Society and Development; Vol. 10 Núm. 4; e44510414308
Research, Society and Development; v. 10 n. 4; e44510414308
2525-3409
reponame:Research, Society and Development
instname:Universidade Federal de Itajubá (UNIFEI)
instacron:UNIFEI
instname_str Universidade Federal de Itajubá (UNIFEI)
instacron_str UNIFEI
institution UNIFEI
reponame_str Research, Society and Development
collection Research, Society and Development
repository.name.fl_str_mv Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)
repository.mail.fl_str_mv rsd.articles@gmail.com
_version_ 1822178887464910848
dc.identifier.doi.none.fl_str_mv 10.33448/rsd-v10i4.14308

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