Durabilidad del aluminio desnudo y anodizado en atmósferas de muy diferentes corrosividades. II. Aluminio anodizado

  1. Otero Huerta, Enrique
  2. López, V.
  3. González, Jaime A.
  4. Morcillo Linares, Manuel
  5. Escudero, E.
Revista:
Revista de metalurgia

ISSN: 0034-8570

Ano de publicación: 2004

Volume: 40

Número: 4

Páxinas: 270-279

Tipo: Artigo

DOI: 10.3989/REVMETALM.2004.V40.I4.274 DIALNET GOOGLE SCHOLAR lock_openAcceso aberto editor

Outras publicacións en: Revista de metalurgia

Indicadores

Citas recibidas

  • Citas en Scopus: 9 (10-02-2024)
  • Citas en Web of Science: 9 (18-10-2023)
  • Citas en Dimensions: 4 (21-12-2023)

JCR (Journal Impact Factor)

  • Ano 2004
  • Factor de impacto da revista: 0.798
  • Factor de impacto sen autocitas: 0.132
  • Article influence score: 0.0
  • Cuartil maior: Q2
  • Área: METALLURGY & METALLURGICAL ENGINEERING Cuartil: Q2 Posición na área: 18/71 (Edición: SCIE)

SCImago Journal Rank

  • Ano 2004
  • Impacto SJR da revista: 0.26
  • Cuartil maior: Q2
  • Área: Metals and Alloys Cuartil: Q2 Posición na área: 57/183
  • Área: Materials Chemistry Cuartil: Q3 Posición na área: 145/264
  • Área: Condensed Matter Physics Cuartil: Q3 Posición na área: 262/425
  • Área: Physical and Theoretical Chemistry Cuartil: Q4 Posición na área: 110/146

Dimensions

(Datos actualizados na data de 21-12-2023)
  • Total de citas: 4
  • Citas recentes (2 anos): 1

Resumo

The behaviour of three anodic films with thicknesses of approximately 7,17 and 28 μm is studied in atmospheric exposure at 11 natural testing stations with salinity levels ranging between 2.1 and 684 mg Cl-1m-2d-1 To evaluate the results, use was made of gravimetric techniques, electrochemical impedance spectroscopy (EIS), EDX microanalysis, standard quality control tests, optical microscopy and, occasionally, electron microscopy. It is shown that anodising with correct sealing is an appropriate solution for preventing localised corrosion of aluminium and conserving its appearance, even in atmospheres of high corrosivity, provided that an ill-defined minimum thickness threshold is passed. The 7 μm anodic films suffer corrosion after the second annual cycle in the most aggressive environments. Corrosion, when it occurs, is localised in the form of pitting or filiform corrosion.