Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.12104/45069
Title: The effect of Ag addition on the corrosion of Zn-22wt%Al alloys
Author: Bautista, F.
Rejon, L.
Manero, O.
Issue Date: 2007
Abstract: In this part, attention is given to the electrorheological effect of suspensions of polarizable particles in three different liquids of varying conductivity. The electrorheological properties of the suspensions are analyzed with a kinetic model that describes the flow-induced modification of the structures formed by the particles under dc electric fields. Under quiescent conditions, the model describes the variation of viscosity of the suspension with the electric field and particle concentration, as well as the change in the yield stress with electric field. The effect of non-linear conductivity is introduced in the model to account for the trend towards saturation observed in the viscosity at high electric fields and particle concentration. Furthermore, the contribution of non-linear conduction in the model allows the prediction of the yield stress at high electric fields. The model further describes the variation of viscosity with shear rate under a given electric field, and time-dependent phenomena arising from the dynamics of the breakage-reformation process of the structures. " 2007 Elsevier B.V. All rights reserved.",,,,,,"10.1016/j.colsurfa.2007.03.051",,,"http://hdl.handle.net/20.500.12104/45069","http://www.scopus.com/inward/record.url?eid=2-s2.0-34249656833&partnerID=40&md5=0d3010a1a985e32aeabd9115a2412602",,,,,,"3",,"Colloids and Surfaces A: Physicochemical and Engineering Aspects",,"191
200",,"303",,"Scopus
WOS",,,,,,"Conductivity; Electrorheology; Rheological modeling; Suspensions",,,,,,"The dielectric spectrum and the electrorheological effect in suspensions of varying conductivity. Part 2. Modeling of the electrorheological effect",,"Article" "46859","123456789/35008",,"Flores, M., Departamento de Ingenieria de Proyectos, CUCEI, Univ. de Guadalajara, A. P. 307, Zapopan, Jal., 45101, Mexico; Huerta, L., Instituto de Investigaciones en Materiales, UNAM, A. P. 70-360, México D.F., 04510, Mexico; Casolco, S.R., Instituto de Investigaciones en Materiales, UNAM, A. P. 70-360, México D.F., 04510, Mexico; Muhl, S., Instituto de Investigaciones en Materiales, UNAM, A. P. 70-360, México D.F., 04510, Mexico; Torres-Villaseñor, G., Instituto de Investigaciones en Materiales, UNAM, A. P. 70-360, México D.F., 04510, Mexico; Luna, J.A., Departamento de Ingenieria de Proyectos, CUCEI, Univ. de Guadalajara, A. P. 307, Zapopan, Jal., 45101, Mexico",,"Flores, M.
Huerta, L.
Casolco, S.R.
Muhl, S.
Torres-Villasenor, G.
Luna, J.A.",,"2003",,"A new Zn-Al-Ag alloy (ZINAG) with mechanical superplastic properties has been developed. In this work four of the Zn-22wt%Al eutectoid alloy doped with between 0.5 to 4.24 wt% Ag have been studied. The superplastic behavior can be explained as a consequence of the fine grain distribution induced during the deformation process. Here the corrosion resistance of these alloys was studied by means of potentiodynamic polarization and measurements of the temporal evolution of the corrosion potential, in a 0.5 M NaCl solution, The corrosion products in the sample surface were analyzed by Rutherford Backscattering Spectrometry (RBS), X-Ray Photoelectron Spectroscopy (XPS) and Auger Electron Spectroscopy (AES). It was found that the corroded surface had lost more Zn than Al. The surface was examined by SEM and it was seen that the corrosion products adhered to the surface cracks. It was found that the alloy with 2.12 wt% concentration of Ag had the best corrosion resistance in the electrolyte used, but no clear tendency with the Ag concentration was found. " 2003 Materials Research Society.
URI: http://hdl.handle.net/20.500.12104/45080
http://www.scopus.com/inward/record.url?eid=2-s2.0-34249896408&partnerID=40&md5=7b89ac6de4b8a9a0d17625d556cbbfb5
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