CAUSTIC STRESS-CORROSION CRACKING OF AN Fe-3Ni ALLOY: EFFECTS OF ALLOYING ADDITIONS OR IMPURITIES.

N. Bandyopadhyay, R. C. Newman, Karl Sieradzki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations

Abstract

Certain additions to low alloy steels promote caustic stress-corrosion cracking (SCC) at relatively oxidizing potentials. Of these, the two most important are Mo and P, the latter being effective at very low concentrations when segregated to the grain boundaries. Using alloys based on Fe-3Ni, the effects of Mo additions up to 5. 2% have been compared with that of P. SCC velocities were compared with the results of potential pulsing experiments. An amorphous Fe-10P alloy was used to simulate the electrochemistry of the enriched grain boundaries in the Fe-Ni-P alloy. Both Mo and P enhance the growth kinetics of a ferric oxide film at the crack tip.

Original languageEnglish (US)
Title of host publicationProceedings of the 9th International Congress on Metallic Corrosion
Place of PublicationOttawa, Ont, Can
PublisherNatl Research Council of Canada
Pages210-215
Number of pages6
StatePublished - 1984
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)

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    Bandyopadhyay, N., Newman, R. C., & Sieradzki, K. (1984). CAUSTIC STRESS-CORROSION CRACKING OF AN Fe-3Ni ALLOY: EFFECTS OF ALLOYING ADDITIONS OR IMPURITIES. In Proceedings of the 9th International Congress on Metallic Corrosion (pp. 210-215). Natl Research Council of Canada.