%0 Journal Article
%T Evaluaci¨®n de la corrosion de un duraluminio en mezclas de gasolina y bioetanol
%A Pe£¿a-Ballesteros
%A Dar¨ªo Yesid
%A Estupi£¿¨¢n-Dur¨¢n
%A Hugo Armando
%A V¨¢squez-Quintero
%A Custodio
%J Ingenier¨ªa y Universidad
%D 2012
%I Pontificia Universidad Javeriana
%X nowadays, different countries use ethanol as a self-propulsion fuel. however, this biofuel is aggressive for metal parts in the fuel system of an automobile. in this study, we determined the corrosion rate of duralumin, a material used in the production of piston engines, in ethanol-gasoline blends at concentrations of 5 to 20%, through electrochemical impedance spectroscopy (eis), tafel polarization and gravimetry. it was shown that the corrosion process control was mixed with a tendency towards localized corrosion. it is generally observed that the corrosion rate of duralumin decreases during the exposure time.
%K electrochemistry - technical
%K mixtures
%K combustion gases
%K mensuration
%K duralumin
%K gavity anomalies
%K alloys corrosion.
%U http://www.scielo.org.co/scielo.php?script=sci_abstract&pid=S0123-21262012000100001&lng=en&nrm=iso&tlng=en