Corrosion protection of in Situ Al-based composite by cerium conversion treatment

S. C. Tjong; H. W. Huo

doi:10.1007/s11665-008-9264-y

Author(s)

S. C. Tjong
H. W. Huo

Detail(s)

Original language	English
Pages (from-to)	88-94
Journal / Publication	Journal of Materials Engineering and Performance
Volume	18
Issue number	1
Publication status	Published - Feb 2009

Link(s)

DOI	DOI https://doi.org/10.1007/s11665-008-9264-y Final Published version
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Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-58149154949&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(5b473d08-94d9-4b85-b43b-40d5808a080a).html

Abstract

Cerium conversion films were deposited on the surface of in situ aluminum-based composite in solutions containing different cerium chloride (CeCl ₃) and hydrogen peroxide (H ₂O ₂) concentrations at 30 °C. The morphology and composition of conversion films deposited in various solutions were investigated using scanning electron microscopy, energy dispersive x-ray analysis, and x-ray photoelectron spectroscopy (XPS). SEM observations revealed that only patches of film can be deposited on the composite surface when immersed in solutions with low CeCl ₃ and H ₂O ₂ concentrations. However, entire composite surface was covered with a compact film when immersed in a solution containing 10 g/L CeCl ₃ and 100 mL/L H ₂O ₂. XPS results indicated that cerium was incorporated as Ce ⁴⁺ species in the hydrated oxide film. The formation of such hydrated conversion film on the composite resulted in low anodic current density and more noble pitting potential when exposed to 3.5% NaCl solution. © 2008 ASM International.

Research Area(s)

Chloride, Coatings, Composites, Corrosion, Oxide film

Citation Format(s)

[ RIS ] [ BibTeX ]

Corrosion protection of in Situ Al-based composite by cerium conversion treatment. / Tjong, S. C.; Huo, H. W.
In: Journal of Materials Engineering and Performance, Vol. 18, No. 1, 02.2009, p. 88-94.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Tjong, SC & Huo, HW 2009, 'Corrosion protection of in Situ Al-based composite by cerium conversion treatment', Journal of Materials Engineering and Performance, vol. 18, no. 1, pp. 88-94. https://doi.org/10.1007/s11665-008-9264-y

Tjong, S. C., & Huo, H. W. (2009). Corrosion protection of in Situ Al-based composite by cerium conversion treatment. Journal of Materials Engineering and Performance, 18(1), 88-94. https://doi.org/10.1007/s11665-008-9264-y

Tjong SC, Huo HW. Corrosion protection of in Situ Al-based composite by cerium conversion treatment. Journal of Materials Engineering and Performance. 2009 Feb;18(1):88-94. doi: 10.1007/s11665-008-9264-y

Tjong, S. C. ; Huo, H. W. / Corrosion protection of in Situ Al-based composite by cerium conversion treatment. In: Journal of Materials Engineering and Performance. 2009 ; Vol. 18, No. 1. pp. 88-94.