Metallurgical Transactions A

, Volume 16, Issue 4, pp 503–510 | Cite as

The Co-Cr-S ternary system at 1223 K and applications to corrosion

  • A. Petric
  • K. T. Jacob


Ternary phase relations in the Co-Cr-S system at 1223 K were determined using microprobe analysis of quenched samples. The results are consistent with the data available on the binary systems. A complete solid solution exists between cobalt monosulfide and chromium monosulfide. The CoCr2S4 thiospinel is the only ternary compound formed. A sulfur potential diagram was constructed for the region involving equilibrium between alloy and monosulfide based on thermodynamic data on the Co-Cr, Co-S, and Cr-S binary systems and the ternary information obtained in this study. The sulfidation behavior of Co-Cr alloys reported in the literature is discussed in light of the sulfur potential diagram.


Metallurgical Transaction Sulfide Phase Monosulfide Pure Cobalt Cr2S3 
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Copyright information

© The Minerals, Metals & Materials Society - ASM International - The Materials Information Society 1985

Authors and Affiliations

  • A. Petric
    • 1
  • K. T. Jacob
    • 2
  1. 1.Ecole Polytechnique, University of MontrealMontrealCanada
  2. 2.Department of MetallurgyIndian Institute of ScienceBangaloreIndia

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