Gaseous carburising of self-passivating Fe–Cr-Ni alloys in acetylene-hydrogen mixtures

Publication: Research - peer-reviewJournal article – Annual report year: 2011

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Gaseous carburising of self-passivating Fe–Cr–Ni alloys in acetylene–hydrogen was investigated for temperatures up to 823 K. Acetylene–hydrogen gas mixtures allow both the activation of the surface and the subsequent carburising at a high and adjustable carburising potential. For relatively low temperatures, carbon stabilised expanded austenite develops, which has high hardness, while retaining the corrosion performance of the untreated alloy; for relatively high temperatures, Cr based carbides develop, and eventually, the material deteriorates by metal dusting corrosion.
Original languageEnglish
JournalSurface Engineering
Publication date2011
Volume27
Journal number8
Pages602-608
ISSN0267-0844
DOIs
StatePublished
CitationsWeb of Science® Times Cited: 3

Keywords

  • Expanded austenite, Acetylene, Carburising
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