Effect of laser welding heat input on fatigue crack growth and CTOD fracture toughness of HSLA steel joints

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorCEFET RJ-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorIEAv DCTA Trevo Cel-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorRibeiro, Henrique Varella-
Autor(es): dc.creatorReis Pereira Baptista, Carlos Antonio-
Autor(es): dc.creatorFernandes Lima, Milton Sergio-
Autor(es): dc.creatorSantos Torres, Marcelo Augusto [UNESP]-
Autor(es): dc.creatorMarcomini, Jose Benedito-
Data de aceite: dc.date.accessioned2022-02-22T00:59:14Z-
Data de disponibilização: dc.date.available2022-02-22T00:59:14Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-03-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.jmrt.2021.01.038-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/210236-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/210236-
Descrição: dc.descriptionHigh strength low alloy steels are employed in structural elements and, despite presenting good weldability, the welded joint is always a critical issue and its evaluation is fundamental in guaranteeing structural integrity. The mechanical properties of weld beads can be significantly different from the base material & rsquo;s properties due to metallurgical alterations caused by the welding process. One of the factors leading to significant impact is the heat input. This paper evaluates the hardness, fracture toughness and fatigue crack growth in weld beads obtained via a Laser process with two different heat inputs, which resulted in weld beads with distinct microstructures: one composed of ferrite presenting different morphologies and the other composed of martensite and bainite. The aims of this work are evaluating the effect of Laser welding heat input on microstructures in the weld beads, and the correlation of the microstructure with fatigue crack growth and crack-tip opening displacement fracture toughness. Fracture toughness presented itself to be more sensitive to the microstructural alterations caused by the heat input than hardness and fatigue crack growth. Weld beads showed higher resistance to fatigue crack growth when compared to the base metal, even though there were no significant differences between them. (c) 2021 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionCEFET RJ, Ctr Fed Educ Tecnol Celso Suckow da Fonseca, Rua Areal 522,Parque Mambucaba, BR-23953030 Angra Dos Reis, RJ, Brazil-
Descrição: dc.descriptionUniv Sao Paulo, Dept Mat Engn, EEL USP, Polo Urbo Ind S-N, BR-12602810 Lorena, SP, Brazil-
Descrição: dc.descriptionIEAv DCTA Trevo Cel, Inst Adv Studies, Av Jose Alberto Albano do Amarante, BR-12228001 Sao Jose Dos Campos, SP, Brazil-
Descrição: dc.descriptionSao Paulo State Univ, Dept Mech, Av Ariberto Pereira da Cunha 333, BR-12516410 Guaratingueta, SP, Brazil-
Descrição: dc.descriptionUniv Sao Paulo, EESC USP, Mat Engn Dept, SMM, Av Joao Dagnone 1100, BR-13563120 Sao Carlos, SP, Brazil-
Descrição: dc.descriptionSao Paulo State Univ, Dept Mech, Av Ariberto Pereira da Cunha 333, BR-12516410 Guaratingueta, SP, Brazil-
Formato: dc.format801-810-
Idioma: dc.languageen-
Publicador: dc.publisherElsevier B.V.-
Relação: dc.relationJournal Of Materials Research And Technology-jmr&t-
???dc.source???: dc.sourceWeb of Science-
Palavras-chave: dc.subjectLaser welding-
Palavras-chave: dc.subjectFatigue crack growth-
Palavras-chave: dc.subjectFracture toughness-
Palavras-chave: dc.subjectWelding metallurgy-
Palavras-chave: dc.subjectHSLA steel-
Título: dc.titleEffect of laser welding heat input on fatigue crack growth and CTOD fracture toughness of HSLA steel joints-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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