Parameters evaluation of bond-coat deposited by CO2 laser beam for aeronautical turbine blades

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dc.contributor.authorTELEGINSKI, V.
dc.contributor.authorSANTOS, J. C. G.
dc.contributor.authorCHAGAS, D. C.
dc.contributor.authorAZEVEDO, J. F.
dc.contributor.authorOLIVEIRA, A. C. C.
dc.contributor.authorVASCONCELOS, G.
dc.date.accessioned2022-01-12T21:59:25Z
dc.date.available2022-01-12T21:59:25Z
dc.date.issued2016-08-05
dc.description.abstract© 2016 Trans Tech Publications, Switzerland.The high temperature environments where aeronautical turbine blades are exposed makes mandatory the use of ceramic coatings. A bond coat comprised by a MCrAlY alloy (M=Co, Ni) is necessary to match the blade metallic substrate with the ceramic, also acting as a corrosion barrier. The laser treatment of metals and alloys is based in the surface local heating, followed by high cooling rates. The laser parameters such as scanning speed and laser power, plays an important role on the morphological, mechanical and chemical characteristics of the deposited material. In the present investigation, the NiCrAlY deposition was performed in stainless steel substrates with a CO2 laser beam. Different laser parameters of scanning speed and number of scanning cycles were implemented. The samples were characterized by optical microscopy and measurements of Vickers hardness. The results show that it is possible to achieve coatings with high hardness, free of pores or any pronounced defects, metallurgically bonded to the substrate.
dc.description.firstpage685
dc.description.lastpage688
dc.description.volume869
dc.identifier.citationTELEGINSKI, V.; SANTOS, J. C. G.; CHAGAS, D. C.; AZEVEDO, J. F.; OLIVEIRA, A. C. C.; VASCONCELOS, G. Parameters evaluation of bond-coat deposited by CO2 laser beam for aeronautical turbine blades. Materials Science Forum, v. 869, p. 685-688, aug. 2016.
dc.identifier.doi10.4028/www.scientific.net/MSF.869.685
dc.identifier.issn1662-9752
dc.identifier.urihttps://repositorio.fei.edu.br/handle/FEI/3930
dc.relation.ispartofMaterials Science Forum
dc.rightsAcesso Restrito
dc.subject.otherlanguageLaser treatment
dc.subject.otherlanguageNiCrAlY
dc.subject.otherlanguageTurbine blades
dc.titleParameters evaluation of bond-coat deposited by CO2 laser beam for aeronautical turbine blades
dc.typeArtigo de evento
fei.scopus.citations0
fei.scopus.eid2-s2.0-84988354655
fei.scopus.subjectChemical characteristic
fei.scopus.subjectDeposited materials
fei.scopus.subjectHigh-temperature environment
fei.scopus.subjectLaser treatment
fei.scopus.subjectMetallic substrate
fei.scopus.subjectNiCrAlY
fei.scopus.subjectStainless steel substrates
fei.scopus.subjectTurbine blade
fei.scopus.updated2024-08-01
fei.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84988354655&origin=inward
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