The invention relates to a process for manufacturing a casting of a hypereutectic high chromium cast iron (HCCI) including: forming a melt of a molten hypereutectic high chromium cast iron and a carbide modifier, and forming a solid casting of the hypereutectic high chromium cast iron. The invention further relates to a carbide-modified hypereutectic high chromium cast iron (HCCI) that includes a dispersion of a primary carbide phase in a ferrous matrix, with the primary carbide phase including a carbide modifier phase within the primary carbide phase that acted as a nucleation agent for the primary carbide phase.

The invention relates to a process for manufacturing a casting of a hypereutectic high chromium cast iron (HCCI) including: forming a melt of a molten hypereutectic high chromium cast iron and a carbide modifier, and forming a solid casting of the hypereutectic high chromium cast iron. The invention further relates to a carbide-modified hypereutectic high chromium cast iron (HCCI) that includes a dispersion of a primary carbide phase in a ferrous matrix, with the primary carbide phase including a carbide modifier phase within the primary carbide phase that acted as a nucleation agent for the primary carbide phase.

Disclosed is an abrasive and corrosive wear-resistant high chromium cast iron containing: 1.0 to 3.0 wt % of carbon (C); 0.5 to 2.0 wt % of silicon (Si); 0.5 to 2.0 wt % of manganese (Mn); 25.0 to 36.0 wt % of chromium (Cr); 0.5 to 3.0 wt % of nickel (Ni); 0.3 to 2.0 wt % of molybdenum (Mo); 0.5 to 1.5 wt % of copper (Cu); 0.2 to 2.0 wt % of vanadium (V); 0.03 to 0.3 wt % of titanium (Ti); more than 0 wt % but not more than 0.03 wt % of niobium (Nb); more than 0 wt % but not more than 0.03 wt % of zirconium (Zr); more than 0 wt % but not more than 0.3 wt % of nitrogen (N); more than 0 wt % but not more than 0.03 wt % of cobalt (Co); and iron (Fe) balance and other unavoidable impurities. Further disclosed are a method of preparing the same cast iron and a part of a FGD apparatus of a thermoelectric power plant.

Disclosed is an abrasive and corrosive wear-resistant high chromium cast iron containing: 1.0 to 3.0 wt % of carbon (C); 0.5 to 2.0 wt % of silicon (Si); 0.5 to 2.0 wt % of manganese (Mn); 25.0 to 36.0 wt % of chromium (Cr); 0.5 to 3.0 wt % of nickel (Ni); 0.3 to 2.0 wt % of molybdenum (Mo); 0.5 to 1.5 wt % of copper (Cu); 0.2 to 2.0 wt % of vanadium (V); 0.03 to 0.3 wt % of titanium (Ti); more than 0 wt % but not more than 0.03 wt % of niobium (Nb); more than 0 wt % but not more than 0.03 wt % of zirconium (Zr); more than 0 wt % but not more than 0.3 wt % of nitrogen (N); more than 0 wt % but not more than 0.03 wt % of cobalt (Co); and iron (Fe) balance and other unavoidable impurities. Further disclosed are a method of preparing the same cast iron and a part of a FGD apparatus of a thermoelectric power plant.

A spheroidal graphite cast iron comprising, in mass percentage: 2.8% or more and 3.3% or less of carbon; 2.5% or more and 4.0% or less of silicon; 0.32% or more and 0.40% or less of manganese; 0.020% or more and 0.030% or less of phosphorus; 0.020% or more and 0.035% or less of sulfur; 0.030% or more and 0.050% or less of magnesium; 0.010% or more and 0.050% or less in total of lanthanum and cerium; and 0.0020% or more and 0.0050% or less of calcium, with the balance being iron and inevitable impurities.

A spheroidal graphite cast iron comprising, in mass percentage: 2.8% or more and 3.3% or less of carbon; 2.5% or more and 4.0% or less of silicon; 0.32% or more and 0.40% or less of manganese; 0.020% or more and 0.030% or less of phosphorus; 0.020% or more and 0.035% or less of sulfur; 0.030% or more and 0.050% or less of magnesium; 0.010% or more and 0.050% or less in total of lanthanum and cerium; and 0.0020% or more and 0.0050% or less of calcium, with the balance being iron and inevitable impurities.

The present invention relates to a particulate inoculant for treating liquid cast-iron, comprising, on the one hand, support particles made of a fusible material in the liquid cast-iron, and on the other hand, surface particles made of a material that promotes the germination and the growth of graphite, disposed and distributed in a discontinuous manner at the surface of the support particles, the surface particles presenting a grain size distribution such that their diameter d50 is smaller than or equal to one-tenth of the diameter d50 of the support particles.

The present invention relates to a particulate inoculant for treating liquid cast-iron, comprising, on the one hand, support particles made of a fusible material in the liquid cast-iron, and on the other hand, surface particles made of a material that promotes the germination and the growth of graphite, disposed and distributed in a discontinuous manner at the surface of the support particles, the surface particles presenting a grain size distribution such that their diameter d50 is smaller than or equal to one-tenth of the diameter d50 of the support particles.

A spheroidal graphite cast iron having an excellent impact strength at low temperature and a method for producing the same are provided. The present disclosure relates to the spheroidal graphite cast iron comprising: C: 3.5 mass % to 4.2 mass %; Si: 2.0 mass % to 2.8 mass %; Mn: 0.2 mass % to 0.4 mass %; Cu: 0.1 mass % to 0.7 mass %; Mg: 0.02 mass % to 0.06 mass %; Cr: 0.01 mass % to 0.15 mass %; and the balance: Fe and inevitable impurities, wherein Mn+Cr+Cu is 0.431 mass % to 1.090 mass %, a graphite nodule count is 230/mm.sup.2 or less, and a pearlite fraction is 30% to 85%.

A slide ring includes a main body composed of grey cast iron, wherein at least a partial region of a functional surface has a ledeburitic microstructure at the surface. A method for producing such a slide ring includes heating a functional surface of the slide ring by irradiating with high-energy radiation, wherein the irradiation is carried out so that at least a partial region of the irradiated surface is remelted, wherein the parameters of the irradiation are selected so that at least a partial region of the functional surface has a ledeburitic microstructure after cooling.