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Abstract
In the present article, influence of manganese on the size and shape of the precipitated TiC crystals by in-situ reaction with varying amounts of manganese in hypoeutectoid steel are presented. Manganese was added up to 6.0% in steps of 1.5%, titanium was fixed at 4%, and carbon at 1.84%. The obtained specimens were examined by using optical, scanning electron microscope (SEM), and X-ray diffraction (XRD) analysis. Tensile properties were evaluated using the ASTM E8 M standard. The microstructure results showed that the in-situ TiC carbides are homogeneously distributed in the metal matrix. Based on the microstructure and XRD pattern, in-situ TiC carbides were identified. The precipitated in-situ TiC in molten Fe-Mn-C alloy is explained by constructing three-dimensional iron rich Fe-Mn-TiC phase diagram. In Fe-Mn-TiC composite, varying manganese content increases the Young's modulus, ultimate tensile strength, and percentage elongation.