Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/93129
Type: Artigo de evento
Title: Laser Surface Treatment Of Plasma-sprayed Yttria-stabilized Zirconia Coatings
Author: Pinto M.A.
Osorio W.R.
Lima C.R.P.
Garcia A.
Ierardi M.C.F.
Abstract: A continuous wave CO2 laser with a defocused beam has been employed to seal the surface layer of plasma-sprayed of 8wt. % yttria-stabilised zirconia coatings on AISI 1045 steel substrate. The effect of laser remelting on microstructure and corrosion resistance of plasma-sprayed layer was investigated. The microstructure of the sealed layer presented a cellular structure which grows perpendicular to the surface. The micrographs have shown small cracks and absence of porosity. The corrosion resistance was analysed by the EIS and polarisation tests by using a 3 % NaCl solution. Laser sealing improved the corrosion resistance of the coating and increased the microhardness.
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Rights: aberto
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Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-33644640800&partnerID=40&md5=7b034cf23d8e8d7dec85ffa46ae55816
Date Issue: 2005
Appears in Collections:Unicamp - Artigos e Outros Documentos

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