Investigations of the breakdown of passive films on Fe-25Cr-4Al alloy by slow rate straining

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

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Original languageEnglish
Pages (from-to)343-350
Journal / PublicationSurface and Coatings Technology
Issue number3-4
Publication statusPublished - Nov 1988
Externally publishedYes


The stress corrosion cracking behaviours of Fe-25Cr and Fe-25Cr-4Al alloys in 20% NaCl solution at 100 °C were investigated by a slow rate straining technique. The results showed that detectable stress corrosion cracking occurred in both alloys under these conditions. However, the Fe-25Cr-4Al alloy was found to be less resistant to the stress corrosion. Application of cathodic potentials during the slow strain rate test resulted in a significant increase in the ductility of both alloys. © 1988.