Published August 2006
| Version v1
Journal article
The role of solidification rate in the corrosion resistance of a directionally solidified novel aluminium-lanthanum alloy
- 1. Programa de Corrosion del Golfo de Mexico, Universidad Autonoma de Campeche, Av. Agustin Melgar s/n, Col. Buenavista, CP 24030 Campeche, Campeche (Mexico)
- 2. CINVESTAV-Merida, Applied Physics Department, Carr. antigua a Progreso, km 6, CP 97310 Merida, Yucatan (Mexico)
- 3. CIATEQ. Calzada del Retablo 150, CP 76150 Queretaro, Queretaro (Mexico)
Description
The corrosion resistance of a novel Al-12.6 wt.%La alloy manufactured using unidirectional solidification was studied by sensitive electrochemical techniques. It was found that the electrochemical behaviour of the alloy depends upon the formation of non-passive corrosion product layers. Different solidification rates produced dissimilar microstructures which promoted selective dissolution when the alloy was anodically polarized in distilled water. A model for the electrochemical behaviour of this alloy was proposed based on an equivalent circuit that simulated the impedance results
Additional details
Identifiers
- DOI
- 10.1016/j.scriptamat.2006.04.001;
- PII
- S1359-6462(06)00287-9;
Publishing Information
- Journal Title
- Scripta Materialia
- Journal Volume
- 55
- Journal Issue
- 3
- Journal Page Range
- p. 255-258
- ISSN
- 1359-6462
- CODEN
- SCMAF7
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38064044
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ALUMINIUM; ALUMINIUM ALLOYS; CORROSION; CORROSION PRODUCTS; CORROSION RESISTANCE; DISSOLUTION; ELECTROCHEMISTRY; EQUIVALENT CIRCUITS; LANTHANUM ALLOYS; LAYERS; MICROSTRUCTURE; SOLIDIFICATION; WATER
- Descriptors DEC
- ALLOYS; CHEMICAL REACTIONS; CHEMISTRY; ELECTRONIC CIRCUITS; ELEMENTS; HYDROGEN COMPOUNDS; METALS; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; RARE EARTH ALLOYS
Optional Information
- Copyright
- Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.