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

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

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

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
Volume284-286
DOIs
Publication statusPublished - 1998 Jan 1

Keywords

  • 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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