抄録
This investigation was undertaken to clarify the influence of sulfur and manganese on the structure of hypo-eutectic white cast iron and the behaviour of the elements during solidification. The specimens containing 1.9∼3.8%C, 0.008∼0.3%S, 0∼1.0%Mn and 1.0%Cr were solidified unidirectionally in the molds used in previous experiments. The size of the eutectic colony became larger with increase in sulfur content, because sulfur extended the temperature range of eutectic reaction. The addition of manganese dissipated this effect of sulfur since sulfur dissolving in the eutectic melt decreased by the crystallization of manganese sulfide.
