초록

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Abstract ▼ AI-Helper

For dolomite clinkers used as stamp materials the corrosion behavior of those by molten steel was investigated in therange of temperatures between 1550$^{\circ}C$ and 1600$^{\circ}C$ IN hot face the dicalciumferrite of magnesioferrite and dicalciumferrite formed within dolomite...

For dolomite clinkers used as stamp materials the corrosion behavior of those by molten steel was investigated in therange of temperatures between 1550$^{\circ}C$ and 1600$^{\circ}C$ IN hot face the dicalciumferrite of magnesioferrite and dicalciumferrite formed within dolomite clinkers was preferentially dissolved into molten steel and the protective layer of magnesioferrite was formed. For dolomite clinker without Fe2O3 magnesioferrite maintained the skeleton of MgO while the skeleton of CaO disappered bythe formation of dicalciumferrite and it existed as grain boundary phases of magnesioferrite. For dolomite clinker with Fe2O3 was diffused into hot face by the decomposition of dicalciumferrite. With increasing temperature of molten steel the formation depth of dicalciumferrite was increased and the magnesioferrite layer in hot face was decreased for dolomite clinker without Fe2O3 while the layer thickness and grain sizes of magnesioferrite in hot face was decreased for dolomite clinker without Fe2O3 while the layer thickness an grain sizes of magnesioferrite in hot face was increased due to the increment of the decomposition reaction of dicalciumferrite for dolomite clinker with Fe2O3.

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