中文摘要：

研究了超声波功率对加稀土高碳钢中夹杂物的作用.结果表明：超声处理可以明显弥散、细化和去除加稀土高碳钢中的夹杂物;随着超声波功率的增加,钢中总氧含量明显降低,夹杂物的平均直径明显减小,夹杂物得到一定程度的去除,但是夹杂物的当量个数明显增多.超声波功率100 W时,高碳钢中总氧的质量分数为59×10^-6,钢中夹杂物的当量个数I为134 mm^-2,平均直径d为2.91μm,小于2.31μm的夹杂物占夹杂物总量的43%以上.

英文摘要：

The effect of ultrasonic power on inclusions of high carbon steel with rare earth was investigated.The results show that ultrasonic treatment in molten high carbon steel with rare earth could can disperse,refine and remove the inclusions.With the increase of ultrasonic power,the total oxygen content of high carbon steel and the average diameter of inclusions decreases evidently,the inclusions of high carbon steel will be removed in a certain degree,but the number of inclusions increases significantly.The massfraction of total oxygen content in high carbon steel, the equivalent number I and the average diameter d of inclusions in ingots are 59 × 10^-6, 134 mm^-2, and 2.91 μm respectively when the ultrasonic power is 100W. At the same time, the number of inclusions less than 2.31 μm is more than 43% of the total.