2010
DOI: 10.3989/revmetalm.0921
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Effect of cobalt on the corrosion behaviour of amorphous Fe-Co- Cr-B-Si alloys in dilute mineral acids

Abstract: The aim of this paper was to investigate the effect of increasing cobalt content on the corrosion resistance of the FeCo-Cr-B-Si alloys in dilute mineral acids. The corrosion rates in 0.5N HCl, 1N HCl and 1N H 2 SO 4 significantly decrease with an increase in cobalt content. The alloys with a larger amount of cobalt can passivate spontaneously. The high corrosion resistance of the Fe-Co-Cr-B-Si alloys is also due to the formation of chromium -enriched passive film. Generally, the corrosion resistance of chromi… Show more

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