On the alpha - alpha-prime miscibility gap of Fe-Cr alloys

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Experimental data on partial ordering and alpha-prime precipitation in Fe–Cr alloys and ferritic steels containing up to 15 at.% Cr are summarized. From this data and computer simulations employing the most advanced Fe–Cr cohesive models, the Fe-rich phase boundary of the alpha - alpha-prime miscibility gap is constructed. This boundary is critically compared with the standard (CALPHAD) Fe–Cr phase diagram in the same concentration range and a significant modification of the latter is proposed.


Original languageEnglish
Pages (from-to)1193-1196
JournalScripta Materialia
Issue number11
Publication statusPublished - 23 Aug 2008


  • Phase diagram, Fe-Cr alloys, Ferritic steels, Precipitation

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