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.
|ジャーナル||Materials Science Forum|
|出版ステータス||Published - 1998|
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