稀土元素对硬线钢中夹杂物的变性处理
Thermodynamic Analysis of Modification Treatment of Rare Earth Elements on Inclusions in Hard Wire Steel
李长荣1, 杨 洪2, 文 辉1
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作者单位：1. 贵州大学 材料与冶金学院, 贵州 贵阳 550003; 2. 贵阳市第七中学, 贵州 贵阳 550001
中文关键字：硬线钢； 夹杂物； 稀土； 变性处理
英文关键字：hard wire steel; inclusion; rare earth; modification treatment
中文摘要：提出了利用稀土元素对硬线钢进行净化钢液、变性夹杂的设想，对稀土元素脱氧的热力学数据进行了计算，认为稀土元素是很强的脱氧剂， 其脱氧能力要强于铝； 并对钙处理和稀土处理夹杂物的两种方法进行了比较。计算结果认为：稀土元素可以与钢液中的氧化铝作用生成塑性的稀土铝酸盐夹杂物，有望成为高品质硬线钢变性处理的一种方法。
英文摘要：The idea of using rare earth elements to purify molten steel and modification inclusion was put forward. The thermodynamic data of rare earth elements de-oxidation were calculated. The results show that the deoxidization of rare earth elements are stronger than aluminum. The two methods of calcium treatment and rare earth treatment were also compared. The calculated results show that rare earth elements can form the plasticity inclusions of RE-aluminate with aluminum oxide in molten steel. It will become a method of modification treatment for high quality hard wire steel products.