Heat Treatment and Yb-Fiber Laser Welding of a Maraging Steel
dc.contributor.author | Fanton, Leonardo [UNESP] | |
dc.contributor.author | Abdalla, Antonio Jorge [UNESP] | |
dc.contributor.author | Fernandes de Lima, M. S. | |
dc.contributor.institution | Universidade Estadual Paulista (Unesp) | |
dc.contributor.institution | Inst Estudos Avancados DCTA IEAv | |
dc.date.accessioned | 2015-03-18T15:56:50Z | |
dc.date.available | 2015-03-18T15:56:50Z | |
dc.date.issued | 2014-09-01 | |
dc.description.abstract | Maraging steels are iron-nickel alloys having an unusual combination of high mechanical strength and high toughness. In this work, the effects of laser welding and postweld heat treatments have been analyzed. The fusion zone showed a cellular-dendritic morphology with a relatively low hardness (approximate to 450 HV) compared to the heat-affected zones (HAZs) and base material (approximate to 500 HV). The segregation in the fusion zone increases the tendency of austenite phase formation during aging. The solutionized and aged coupons presented the highest yield strength values (approximate to 1890 MPa). Homogenization treatment showed to be effective on eliminating the as-cast dendritic structure of the fusion zone, but decreased the yield strength to about 1350 MPa, showing that this treatment should be used carefully. The welded specimens presented tensile strength close to the unwelded specimens, demonstrating that the ytterbium-fiber laser welding of 18Ni-type maraging steels could be considered. | en |
dc.description.affiliation | Univ Estadual Paulista Julio de Mesquita Filho UN, Sao Paulo, Brazil | |
dc.description.affiliation | Inst Estudos Avancados DCTA IEAv, Sao Paulo, Brazil | |
dc.description.affiliationUnesp | Univ Estadual Paulista Julio de Mesquita Filho UN, Sao Paulo, Brazil | |
dc.description.sponsorship | Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) | |
dc.description.sponsorship | Instituto de Estudos Avancados (IEAv/DCTA) | |
dc.description.sponsorshipId | CAPES: 014/08 | |
dc.format.extent | 362S-368S | |
dc.identifier | http://www.nxtbook.com/nxtbooks/aws/wj_201409/index.php?startid=362-s | |
dc.identifier.citation | Welding Journal. Miami: Amer Welding Soc, v. 93, n. 9, p. 362S-368S, 2014. | |
dc.identifier.issn | 0043-2296 | |
dc.identifier.uri | http://hdl.handle.net/11449/117727 | |
dc.identifier.wos | WOS:000346330300024 | |
dc.language.iso | eng | |
dc.publisher | Amer Welding Soc | |
dc.relation.ispartof | Welding Journal | |
dc.relation.ispartofjcr | 1.652 | |
dc.relation.ispartofsjr | 0,654 | |
dc.rights.accessRights | Acesso aberto | |
dc.source | Web of Science | |
dc.subject | Laser Beam Welding | en |
dc.subject | Maraging Steels | en |
dc.subject | High-Strength Steels | en |
dc.subject | Precipitation Hardening | en |
dc.title | Heat Treatment and Yb-Fiber Laser Welding of a Maraging Steel | en |
dc.type | Artigo | |
dcterms.rightsHolder | Amer Welding Soc | |
unesp.campus | Universidade Estadual Paulista (Unesp), Faculdade de Engenharia, Guaratinguetá | pt |
unesp.department | Engenharia Mecânica - FEG | pt |