Effect of additional elements on the morphology of TiS in steels during solidification

Y. Ouchi, K. Oikawa, Ikuo Ohnuma, K. Ishida

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10 Citations (Scopus)


The morphology of TiS in steels formed during solidification and the modification of this morphology by the addition of alloying elements of Mn, Zr, Cr and C were investigated by means of optical and scanning electron microscopy. It is shown that the morphologies can be classified into three types: (i) globular (ii) rod-like and (iii) plate-like Sulfides. The morphology of TiS in the Fe-0.5%Ti-0.3%S base alloy is the rod-like sulfide while additions of Mn and Zr change the morphology from rod-like to globular. The tendency of enrichment of alloying elements in the sulfide is in the order Zr>(Ti)>Mn>Cr, which is similar to that in MnS. The formation of different TiS morphologies is discussed based on phase diagram information.

Original languageEnglish
Pages (from-to)509-516
Number of pages8
JournalMaterials Science Forum
Publication statusPublished - 1998 Jan 1


  • Eutectic Reaction
  • Inclusion
  • Monotectic Reaction
  • Morphology
  • Phase Diagram
  • Solidification
  • Titanium Sulfide

ASJC Scopus subject areas

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

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