The Z-phase in 9-12% Cr ferritic steels: A phase stability analysis

Cenk Kocer, Taichi Abe, Aloysius Soon

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

The formation enthalpies of the Z- and B1 MN-phases, where M = Cr, Fe, Nb, and V, were calculated using an ab initio computational method. The relative stability of the Z- and MN-phases was examined in the framework of the CALPHAD methodology. The analysis indicates that the Z-phase is more stable than the B1 MN-phase in the 9-12% Cr ferritic steels. This result is in agreement with experiments where the Z-phase is observed to dominate over the B1 MN-phases after long-term creep.

Original languageEnglish
Pages (from-to)1-5
Number of pages5
JournalMaterials Science and Engineering A
Volume505
Issue number1-2
DOIs
Publication statusPublished - 2009 Apr 15

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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