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
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.
id UNIFEI_32aae400fe299a3b03830b1ec97a1ca6
oai_identifier_str oai:ojs.pkp.sfu.ca:article/14308
network_acronym_str UNIFEI
network_name_str Research, Society and Development
repository_id_str
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
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
title_full_unstemmed 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
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_ 1797052806084952064

Registros relacionados