dc.creator | Dos Santos M.C.G. | |
dc.creator | Freire C.M.A. | |
dc.date | 2012 | |
dc.date | 2015-06-25T20:23:17Z | |
dc.date | 2015-11-26T15:18:38Z | |
dc.date | 2015-06-25T20:23:17Z | |
dc.date | 2015-11-26T15:18:38Z | |
dc.date.accessioned | 2018-03-28T22:28:16Z | |
dc.date.available | 2018-03-28T22:28:16Z | |
dc.identifier | | |
dc.identifier | Revista Materia. , v. 17, n. 4, p. 1144 - 1157, 2012. | |
dc.identifier | 15177076 | |
dc.identifier | 10.1590/S1517-70762012000400005 | |
dc.identifier | http://www.scopus.com/inward/record.url?eid=2-s2.0-84875551850&partnerID=40&md5=15fec688e2eb70ed0f5c6547d2c6c329 | |
dc.identifier | http://www.repositorio.unicamp.br/handle/REPOSIP/90008 | |
dc.identifier | http://repositorio.unicamp.br/jspui/handle/REPOSIP/90008 | |
dc.identifier | 2-s2.0-84875551850 | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/1259603 | |
dc.description | Zinc-iron alloy electroplated steel is a material commonly used in the construction industries and automotive. This zinc-based material needs, however, to be protected against corrosive environments through a surface treatment that generally has hexavalent chromium, which is toxic to the environment and may cause cancer to human being. This paper shows a study with the films of rare earth (Ce or La) on the zinc-iron alloy electroplated steel. These films were evaluated using Polarization Curves, Electrochemical Impedance Spectroscopy (EIS), Scanning Electron Microscopy (SEM) and EDS. The X-ray photoelectron spectroscopy (XPS) was also used to prove the existence of oxide films on the surface of zinc-iron alloy electroplated steel. The EIS and Polarization results have shown that the systems under study were efficient against corrosion and its performance depended upon the type of salt. The sample ZnFe+Ce proved to have the best inhibitors against corrosion. The cathodic branch of the polarization curve presents a decrease in order of 10 times in the current density when the ZnFe alloy coating were treated with rare earth and IZI increase in order of one time at the same circumstance. | |
dc.description | 17 | |
dc.description | 4 | |
dc.description | 1144 | |
dc.description | 1157 | |
dc.description | (2000) End-Of-Life Vehicles, , OJEC- Official Journal of the Europe Communities - Directive 2000/53/ec of the European Parliament and of the Concil, 18- setembro | |
dc.description | Aldykiewicz, A.J., Davenport, A.J., Isaacs, H.S., Studies of the formation of cerium-rich protective films using x-ray absorption near-edge spectrocopy and rotating disk electrode methods (1996) Journal of Electrochemical Society, 143 (1), pp. 147-154 | |
dc.description | Palomino, L.M., Aoki, I.V., Demelo, H.G., Microstructural and electrochemical characterization of Ce conversion layers formed on Al alloy 2024-T3 covered with Cu-rich smut (2006) Electrochimica Acta, 51, pp. 5943-5953 | |
dc.description | Andreatta, F., Druart, M.E., Lanzurtti, A., Localized corrosion inhibition by cerium species on clad AA2024 aluminium alloy investigated by means of electrochemical micro-cell (2012) Corrosion Science, 65, pp. 376-386. , December | |
dc.description | Takeuchi, S.M.T., Azambuja, D.S., Costa, I., Cerium conversion layer for improving the corrosion resistance of phosphated NdFeB magnets (2006) Surface and Coatings Technology, 201 (6), pp. 3670-3675. , December | |
dc.description | Santos, M.C.G., (2005) Avaliação do desempenho de filmes contendo silanos e sais de terras raras para proteção contra corrosão de camadas ZnFe eletrodepositadas, D.Sc, p. 130. , Faculdade De Engenharia Mecânica, Universidade Estadual de Campinas, Campinas -SP | |
dc.description | Aramaki, K., The inhibition effects of cation inhibitors on corrosion of zinc in aerated 0.5M NaCl (2001) Corrosion Science, 43, pp. 591-604. , July | |
dc.description | Aramaki, K., Preparation of self-healing protective films on a zinc electrode treated in a cerium (III) nitrate solution and modified with sodium phosphate and cerium (III) nitrate (2003) Corrosion Science, 46, pp. 1565-1579. , September | |
dc.description | Aramaki, K., Treatment of zinc surface with cerium (III) nitrate to prevent zinc corrosion in aerated 0.5M NaCl (2001) Corrosion Science, 43, pp. 2201-2215. , November | |
dc.description | Montemor, M.F., Simôes, A.M.P., Ferreira, M.G.S., Composition and behaviour of cerium films on galvanised steel (2001) Progress In Organic Coatings, 43 (4), pp. 274-281. , December | |
dc.description | Ferreira, M.G.S., Duarte, R.G., Montemor, M.F., Silanes and rare earth salts as chromate replacers for pre-treatments on galvanized steel (2004) Electrochimica Acta, 49, pp. 2927-2935 | |
dc.description | Peng, T., Man, R., Rare earth and silane as chromate replacers for corrosion protection on galvanized steel (2009) Journal of Rare Earths, 27, pp. 159-163 | |
dc.description | Balasubramaniam, M., Melendres, C.A., Mansour, A.N., An X-ray absorption study of the local structure of cerium in electrochemically deposited thin films (1999) Thin Solid Films, 347, pp. 178-183 | |
dc.description | Tamborim, S.M., Maisonave, A.P.Z., Azambuja, D.S., An electrochemical and superficial assessment of the corrosion behavior of AA 2024-T3 treated with etacryloxypropylmethoxysilane and cerium nitrate (2008) Surface and Coatings Technology, 202 (24), pp. 5991-6001. , August | |
dc.description | Kautec, W., Share, M., Paatsh, W., Transition metal effects in the corrosion protection of elestroplated zinc alloy coatings (1994) Electrocchimica Acta, 39, pp. 1151-1157 | |
dc.description | Tromat, N., Gautiersoyer, M., Bordier, G., Formation of the Ce/Y2O3 interface: An in XPS study (1996) Surface Science, 345, pp. 290-302 | |
dc.description | Howng, W.Y., Thorn, R.J., Investigation of the electronic structure of La1- X (M+2)XCrO3, Cr2O3 and La2O3 by X-Ray photoelectron-spectroscopy (1980) Journal Physics and Chemistry of Solids, 41 (1), pp. 75-81 | |
dc.description | Aballe, A., Benthecourt, M., Botana, F.J., CeCl3 and LaCl3 binary solutions as environment-friendly corrosion inhibitors of AA5083 Al-Mg alloy in NaCl solutions (2001) Journal of Alloys and Compounds, 323-324, pp. 855-858 | |
dc.description | Rudd, A.L., Breslid, C.B., Mansfeld, F., The corrosion protection afforded by rare earth conversion coatings applied to magnesium (2000) Corrosion Science, 42 (1-2), pp. 275-288 | |
dc.description | Lumpp, S.N., (2005) Obtenção De Filmes Passivantes De Molibidato De Amônio E Nitrato De Cério Para Ligas De Zinco Eletrodepositadas, D.Sc., Pp, 130. , Faculdade de Engenharia Mecânica, Universidade Estadual de Campinas, Campinas-SP | |
dc.language | en | |
dc.language | pt | |
dc.publisher | | |
dc.relation | Revista Materia | |
dc.rights | aberto | |
dc.source | Scopus | |
dc.title | Study Of The Performance Of Films Containing Rare Earth Salts As Corrosion Inhibitors Of Zinc-iron Alloy Electroplated Steel [estudo Do Desempenho De Filmes Contendo Sais De Terras Raras Como Inibidores De Corrosão Da Liga Znfe Eletrodepositada Sobre Aço] | |
dc.type | Artículos de revistas | |