Exploring the viability of Mg-3Pb alloy as sacrificial anode for the cathodic protection of AZ31, AM60 and AZ91 Mg alloys
The use of a custom Mg-3Pb alloy as a sacrificial anode for protecting AZ31, AM60, and AZ91 Mg alloys in 0.1 M NaCl solution was evaluated using surface characterization, mass loss, electrochemical measurements, and gravimetric H collection. The Mg-3Pb alloy exhibited consistently lower open circuit...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2025 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/379955 |
| Acceso en línea: | http://hdl.handle.net/10261/379955 |
| Access Level: | acceso abierto |
| Palabra clave: | Mg alloys Cathodic protection Sacrificial anode Hydrogen evolution Galvanic corrosion Cathodic activation |
| Sumario: | The use of a custom Mg-3Pb alloy as a sacrificial anode for protecting AZ31, AM60, and AZ91 Mg alloys in 0.1 M NaCl solution was evaluated using surface characterization, mass loss, electrochemical measurements, and gravimetric H collection. The Mg-3Pb alloy exhibited consistently lower open circuit potential values than the protected alloys and demonstrated protection efficiencies over 95 %. No polarity reversal or cathodic activation was observed, despite increased anomalous H evolution. These findings confirm the effectiveness and viability of Mg-3Pb alloy as a sacrificial anode for the cathodic protection of AZ31, AM60, and AZ91 Mg alloys. |
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