IN-SITU TIC PRECIPITATION IN MOLTEN FE-CR-C AND THEIR CHARACTERIZATION

Srinivasa K, K I Parashivamurthy, Rakshith N

Abstract: Tic particles were formed in liquid iron solution by the reaction between pure titanium and carbon available in molten Fe-Cr. TiC particles have been precipitated in steels with four different carbon content by in-situ reaction during melting. The influence of titanium, carbon and chromium concentration on the precipitation of TiC and effect of chromium on TiC was studied. The samples were studied by means of optical microscopy, scanning electron microscopy and X-ray microanalysis. The morphology of the obtained crystals was studied and correlated with carbon and titanium and chromium. It was found that TiC crystallises as primary crystals at 1600oC during solidification of the Fe-Cr melt. The obtained crystals were of cubic, rectangle and had maximum of 27.2µm the size and shape of the carbides increases with increasing carbon and titanium in molten Fe-Cr.

Keywords: TiC, X-ray, Chromium, Optical Morpology. etc.

DOI: https://doi.org/10.15623/ijret.2017.0604021