02062nab a2200193 4500 20260520000857.0 260224s2009 xxu Cuevas-Arteaga, C. 33060 Domínguez-Crescencio, F. 43539 Application of the Electrochemical Noise Technique to Study the Corrosion Resistance of AISI 316 Exposed to Aqueous Lithium Bromide Solution nov. 2009 07/07/2010 ; 07/07/2010 10 p. ; 748-757 Transcripción del resumen del autor. Corrosion resistance of AISI 316 (UNS S31600) exposed to lithium bromide (LiBr) solution (50 wt%) was investigated using the electrochemical noise (EN), polarization curves (PC), and the weight-loss method (WL) at 25, 50, 60, 70, and 80°C. The goal of this work was to obtain the corrosion rates of AISI 316 in LiBr solution, which is one of the absorbents used in heat pumps for both refrigeration and heating. Although this solution is a good absorbent, it is highly corrosive. From EN, the current and potential noise-time series records seemed to have similar characteristics: low-medium amplitude and high-frequency stochastic oscillations. Also, from EN, the resistance noise (Rn) and the localization index were calculated, and then the Stern-Geary equation and Faraday's Law were used to determine the mass loss. The magnitudes of the localization index were in the range of general-mixed corrosion. The corrosion rates results increased with temperature. Through the PC the Tafel slopes were obtained together with the corrosion potentials, the pitting potentials, and the current density. Scanning electron microscopy (SEM) analysis of the corroded samples and atomic absorption analysis of the corrosion products solutions were also made. The SEM results confirmed the pitting behavior of AISI 316, which was in agreement with the EN results. The previous results verified rather severe pitting of AISI 316. 11 Corrosion 65 ARTICULO 171828 171828 0 0 0 0 239647 BAAB BAAB 2026-03-05 200046703 0 200046703 2026-03-05 15:14:12 2026-03-05 ARTICULO