【摘要】 依据合金热力学原理．借助金相分析、电子探针分析，探讨了铈对高碳低合金钢中的氧化物、硫化物的影响．结果表明，钢中添加铈．铈的氧化物、氧硫化物、硫化物将取代其他元素的氧化物、硫化物，且Ⅱ型硫化物消失．这一影响遵循热力学规律；铈还显著提高钢的洁净度。更多还原

【Abstract】 According to thermodynamics and by metallographic examination and EPM,the influence of Ce on oxide and sulphide in high-carbon low-alloy cast.steel has been studied. The result shows that with the addition of Ce to steel, the Ce-oxide, Ce-oxi-sulphide.Ce-sulphide will displace the oxide and the sulphide of other elements in steel. and type Ⅱsulphide seems to have disappered in steel. This is in accordance with thermodynamics. At the same time the steel cleanliness is markedly improved.更多还原