Correction of Phase Balance on Nd:YAG Pulsed Laser Welded UNS S32750 Using Cobalt Electroplating Technique

Página do item simplificado
dc.contributor.authorDa Cruz Junior, Eli J.
dc.contributor.authorSeloto, Bruna B. [UNESP]
dc.contributor.authorVentrella, Vicente A. [UNESP]
dc.contributor.authorVarasquim, Francisco M. F. A.
dc.contributor.authorZambon, Andrea
dc.contributor.authorCalliari, Irene
dc.contributor.authorGennari, Claudio
dc.contributor.authorSettimi, Alessio G.
dc.contributor.institutionScience and Technology
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversity of Padua
dc.date.accessioned2023-07-29T13:44:16Z
dc.date.available2023-07-29T13:44:16Z
dc.date.issued2023-02-01
dc.description.abstractSuper-duplex stainless steel (SDSS) shows high mechanical and corrosion resistance because of the balanced structure of austenite and ferrite. However, maintaining this phase ratio after welding is a challenge. The use of austenite stabilizing components is recommended to balance the microstructure. The addition of alloying elements presents a challenge because of the characteristics of Nd:YAG pulsed laser welding. An approach, which has proven to be effective, is to use metal electroplating to prepare the surfaces of the mechanical SDSS components that will be welded, therefore promoting the phase balance in the fusion zone. While the effects of metals such as nickel as an austenite stabilizer are well recognized, cobalt’s effects require more research. The present work investigated the influence of the use of cobalt addition in the joining process by preliminary electroplating on UNS S32750 SDSS Nd: YAG pulsed laser welding, specifically regarding microstructure and microhardness. Three conditions were investigated, changing the thickness of the deposited cobalt layer. The addition of cobalt modified the morphology and increased the volume fraction of austenite. An austenite volume fraction of around 48% was obtained using a 35 μm thick cobalt coating. The microhardness was affected by austenite/ferrite proportions. The microhardness dropped from about 375 HV to 345 HV as the cobalt layer’s thickness rose, being similar to that of the base metal. The effect of cobalt as an austenite stabilizer was observed, and the cobalt electroplating technique was effective to correct the phase balance on UNS S32750 laser welding.en
dc.description.affiliationSão Paulo Federal Institute of Education Science and Technology, Campus Itapetininga, SP
dc.description.affiliationMechanical Engineering Department UNESP São Paulo State University, Campus of Ilha Solteira, SP
dc.description.affiliationDepartment of Industrial Engineering University of Padua, Via Marzolo 9
dc.description.affiliationUnespMechanical Engineering Department UNESP São Paulo State University, Campus of Ilha Solteira, SP
dc.identifierhttp://dx.doi.org/10.3390/cryst13020256
dc.identifier.citationCrystals, v. 13, n. 2, 2023.
dc.identifier.doi10.3390/cryst13020256
dc.identifier.issn2073-4352
dc.identifier.scopus2-s2.0-85149215260
dc.identifier.urihttp://hdl.handle.net/11449/248446
dc.language.isoeng
dc.relation.ispartofCrystals
dc.sourceScopus
dc.subjectcobalt electroplating
dc.subjectmicrohardness
dc.subjectmicrostructure
dc.subjectNd:YAG pulsed laser welding
dc.subjectsuper duplex stainless steel
dc.subjectvolume fraction
dc.titleCorrection of Phase Balance on Nd:YAG Pulsed Laser Welded UNS S32750 Using Cobalt Electroplating Techniqueen
dc.typeArtigo
unesp.author.orcid0000-0002-1576-3532[1]
unesp.author.orcid0000-0003-0865-5258[3]
unesp.author.orcid0000-0002-5130-3461[4]
unesp.author.orcid0000-0002-8059-7876[5]
unesp.author.orcid0000-0002-6668-3866[7]
unesp.departmentEngenharia Mecânica - FEISpt

Arquivos

Coleções

Ilha Solteira - FEIS - Faculdade de Engenharia