000			01623nab a2200205 4500
005			20260520000856.0
008			260224s2009 xxu
245	0	0	_aElectrochemical Behavior of Sn-Ag Alloys in Alkaline Solutions
260			_a _b _csep. 2009
270			_a07/07/2010 ; 06/07/2010
300			_a8 p. ; 587-594
520			_aTranscripción del resumen del autor. The behavior of four Sn-Ag alloys and their individual metal components in sodium hydroxide (NaOH) solutions was studied using open-circuit potential, potentiodynamic polarization, and electrochemical impedance spectroscopy (EIS). The results reveal that each of the initial open-circuit potential at zero time, Ei, and final open-circuit potential after 60 min, Ef, (at concentrations <0.30 M) shifts toward more negative values, indicating a relatively higher rate of dissolution during the spontaneous oxide growth/oxide dissolution process under the currentless conditions. While at concentrations <0.30 M, there is no significant change in potential. The two corrosion parameters (corrosion potential [Ecorr] and corrosion current density [icorr]) show a linear relation with both the solution concentration and alloy composition. EIS results show that each of the total resistance (RT) and reciprocal capacitance (C-1) values decreases with an increase in the tin content up to 50%. After that, there is little change in their values.
581			_a9
773	0		_tCorrosion _g65
942			_cARTICULO
100	1		_aAmeer, M.A. _943515
100	1		_aFekry, A.M. _943516
100	1		_aGhoniem, A.A. _943517
999			_c171810 _d171810