功率超声对T10钢凝固特性的影响  

Effect of Ultrasonic Treatment on the Solidification Characteristics of T10 Steel

作　　者：张勇[1] 刘清梅[1] 宋耀林[1] 戚飞鹏[1] 翟启杰[1] 

机构地区：[1]上海大学材料科学与工程学院,上海200072

出　　处：《铸造》2006年第2期188-190,共3页Foundry

基　　金：国家自然科学基金(50374046)。

摘　　要：采用功率超声对T10钢的凝固过程进行处理,分析了功率超声对T10钢凝固组织和凝固冷却曲线的影响,并在此基础上探索了超声空化和声流效应对T10钢凝固过程的作用机理。结果表明,功率超声能够细化T10钢凝固组织、缩短凝固时间、降低凝固开始温度,超声波功率为700 W时得到均匀细小的等轴晶。The effect of ultrasonic treatment on the solidification characteristic of T10 steel is investigated in the present research. The experimental results show that structure of T10 steel can be refined by ultrasonic treatment. It is also show that the solidification temperature and the solidification time are decreased with the ultrasonic treatment. Based on the aforementioned experiment results, the mechanism of cavitation and acoustic streaming induced by ultrasonic treatment is explored.

关 键 词：功率超声 冷却曲线 晶粒细化 

分 类 号：TG111.4[金属学及工艺—物理冶金]