A surface study of the passivation of Fe-Cr-Co magnet alloys in sulphuric acid solution

S. C. Tjong

doi:10.1016/0169-4332(90)90064-7

Author(s)

S. C. Tjong

Detail(s)

Original language	English
Pages (from-to)	141-149
Journal / Publication	Applied Surface Science
Volume	45
Issue number	2
Publication status	Published - Sep 1990
Externally published	Yes

Link(s)

DOI	DOI https://doi.org/10.1016/0169-4332(90)90064-7 Final Published version
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Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-0025492064&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(4e625c9d-1f62-4ae8-86df-906a457f0302).html

Abstract

Ferritic Fe-24Cr-(3-12)Co alloys in the as-quenched and step-aged conditions were exposed in 0.5 M H₂SO₄ solution. Electrochemical, Auger and XPS techniques were used to characterize the passive film formed on these alloys in sulphuric acid solution. The results show that higher Co contents in the as-quenched Fe-24Cr-Co alloys are effective in suppressing the anodic dissolution of Fe prior to passive film formation. However, spinodal decomposition of the aged Fe-24Cr-12Co alloy into Fe-rich α₁ particles leads to an increase of the current density in the passive region. © 1990.

Citation Format(s)

[ RIS ] [ BibTeX ]

A surface study of the passivation of Fe-Cr-Co magnet alloys in sulphuric acid solution. / Tjong, S. C.

In: Applied Surface Science, Vol. 45, No. 2, 09.1990, p. 141-149.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review

Tjong, SC 1990, 'A surface study of the passivation of Fe-Cr-Co magnet alloys in sulphuric acid solution', Applied Surface Science, vol. 45, no. 2, pp. 141-149. https://doi.org/10.1016/0169-4332(90)90064-7

Tjong, S. C. (1990). A surface study of the passivation of Fe-Cr-Co magnet alloys in sulphuric acid solution. Applied Surface Science, 45(2), 141-149. https://doi.org/10.1016/0169-4332(90)90064-7

Tjong SC. A surface study of the passivation of Fe-Cr-Co magnet alloys in sulphuric acid solution. Applied Surface Science. 1990 Sep;45(2):141-149. doi: 10.1016/0169-4332(90)90064-7

Tjong, S. C. / A surface study of the passivation of Fe-Cr-Co magnet alloys in sulphuric acid solution. In: Applied Surface Science. 1990 ; Vol. 45, No. 2. pp. 141-149.