Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/337298
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dc.contributor.CRUESPUNIVERSIDADE ESTADUAL DE CAMPINASpt_BR
dc.contributor.authorunicampBrito, Talita Almeida Vida de-
dc.contributor.authorunicampLima, Thiago Soares-
dc.contributor.authorunicampCheung, Noé-
dc.contributor.authorunicampGarcia, Amauri-
dc.typeArtigopt_BR
dc.titleNear-eutectic Zn-Mg alloys: Interrelations of solidification thermal parameters, microstructure length scale and tensile/corrosion propertiespt_BR
dc.contributor.authorVida, Talita A.-
dc.contributor.authorBrito, Crystopher-
dc.contributor.authorLima, Thiago S.-
dc.contributor.authorSpinelli, Jose E.-
dc.contributor.authorCheung, Noe-
dc.contributor.authorGarcia, Amauri-
dc.subjectLigas de magnesiopt_BR
dc.subjectLigas de zincopt_BR
dc.subject.otherlanguageZinc alloyspt_BR
dc.subject.otherlanguageMagnesium alloyspt_BR
dc.description.abstractZn-Mg alloys are considered to have potential application in bone implants, since both metals are biocompatible and have biodegradable characteristics. Adding Mg to Zn can boost mechanical and corrosion resistances. However, the literature is very limited on quantifying the interrelation of solidification parameters, microstructural features and mechanical/corrosion properties of Zn-Mg alloys. The present study examines the interrelations of alloy Mg content, macrosegregation effects, morphology and scale of the matrix and eutectic phases, nature of intermetallics and tensile and corrosion properties of near-eutectic Zn-Mg alloys. The alloys samples are obtained by unsteady-state directional solidification resulting in a wide range of solidification thermal parameters and microstructures. We examine microstructural features of both dendritic and complex regular eutectic phases. It is shown that the eutectic exhibits a bimodal pattern with neighboring areas of coarse and fine lamellae. Experimental growth laws relating the primary, secondary and eutectic spacings to the solidification cooling rate and growth rate are proposed. Hall-Perch type equations are derived expressing tensile strength and elongation to dendritic and eutectic spacings. Electrochemical parameters determined by polarization curves during corrosion tests and SEM analyses of corroded areas have shown that the alloy having an essentially eutectic microstructure is associated with better corrosion resistancept_BR
dc.relation.ispartofCurrent applied physicspt_BR
dc.publisher.cityAmsterdampt_BR
dc.publisher.countryPaíses Baixospt_BR
dc.publisherElsevierpt_BR
dc.date.issued2019-
dc.date.monthofcirculationMaypt_BR
dc.language.isoengpt_BR
dc.description.volume19pt_BR
dc.description.issuenumber5pt_BR
dc.description.firstpage582pt_BR
dc.description.lastpage598pt_BR
dc.rightsFechadopt_BR
dc.sourceWOSpt_BR
dc.identifier.issn1567-1739pt_BR
dc.identifier.eissn1878-1675pt_BR
dc.identifier.doi10.1016/j.cap.2019.02.013pt_BR
dc.identifier.urlhttps://www.sciencedirect.com/science/article/pii/S1567173919300586pt_BR
dc.description.sponsorshipCONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQpt_BR
dc.description.sponsorshipCOORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPESpt_BR
dc.description.sponsorshipFUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESPpt_BR
dc.description.sponsordocumentnumber406239/2018-5pt_BR
dc.description.sponsordocumentnumbersem informaçãopt_BR
dc.description.sponsordocumentnumber2014/50502-5; 2017/16058-9pt_BR
dc.date.available2020-03-24T19:31:43Z-
dc.date.accessioned2020-03-24T19:31:43Z-
dc.description.provenanceSubmitted by Sanches Olivia (olivias@unicamp.br) on 2020-03-24T19:31:43Z No. of bitstreams: 0. Added 1 bitstream(s) on 2020-07-20T14:17:10Z : No. of bitstreams: 1 000461781700004.pdf: 6618488 bytes, checksum: 4f38d3bbe5428030d7b5fee34e518c19 (MD5)en
dc.description.provenanceMade available in DSpace on 2020-03-24T19:31:43Z (GMT). No. of bitstreams: 0 Previous issue date: 2019en
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/337298-
dc.contributor.departmentsem informaçãopt_BR
dc.contributor.departmentsem informaçãopt_BR
dc.contributor.departmentDepartamento de Engenharia de Manufatura e Materiaispt_BR
dc.contributor.departmentDepartamento de Engenharia de Manufatura e Materiaispt_BR
dc.contributor.unidadeFaculdade de Engenharia Mecânicapt_BR
dc.subject.keywordZn-Mg alloyspt_BR
dc.subject.keywordDirectional solidificationpt_BR
dc.subject.keywordMicrostructurept_BR
dc.subject.keywordTensile propertiespt_BR
dc.subject.keywordCorrosionpt_BR
dc.identifier.source000461781700004pt_BR
dc.creator.orcidsem informaçãopt_BR
dc.creator.orcidsem informaçãopt_BR
dc.creator.orcid0000-0003-1120-8926pt_BR
dc.creator.orcid0000-0002-3834-3258pt_BR
dc.type.formArtigopt_BR
dc.description.sponsorNoteThe authors are grateful to FAPESP- São Paulo Research Foundation, Brazil (grants: 2014/50502-5 and 2017/16058-9), Capes- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, Brazil (Funding Code 001) and CNPq- National Council for Scientific and Technological Development (grant 406239/2018-5) for their financial support. The authors would like to thank the Brazilian Nanotechnology National Laboratory – LNNano for allowing us to use its facilitiespt_BR
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