Application of Electrochemical Techniques to Characterization of the Corrosion Behaviors of GW63 Alloys

Abstract:

Article Preview

The corrosion behavior of GW63 (Mg-6wt.%Gd-3wt.%Y-0.4wt.%Zr) alloys in 5% NaCl aqueous solution has been investigated by PARSTAT 2273 instrument. The Open Circuit Potential (ECORR) vs. time curve, cyclic polarization (Pitting Scans) curve and Electrochemical Impedance Spectroscopy (EIS) was measured for the GW63 alloys in as-cast and T6 heat treatment conditions. The EIS results indicated that the tendency of impedance variation for as-cast condition was monotonic decreasing, however, the tendency of variation for T6 condition was not completely monotonic but the total tendency was decreasing. The values of impedance of GW63 alloy at 0.1 Hz are about 103 ohm-cm2 for as-cast and T6 condition.

Info:

Periodical:

Materials Science Forum (Volumes 546-549)

Edited by:

Yafang Han et al.

Pages:

571-574

DOI:

10.4028/www.scientific.net/MSF.546-549.571

Citation:

X. W. Guo et al., "Application of Electrochemical Techniques to Characterization of the Corrosion Behaviors of GW63 Alloys", Materials Science Forum, Vols. 546-549, pp. 571-574, 2007

Online since:

May 2007

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.