Effect of ultrasonic treatment on graphite morphology of grey cast iron

摘要：

The transient ultrasonic treatment (UST) can cause the graphite structure changes of grey cast iron from typical A type flake graphite to the tip round graphite which is slightly rough, and mixed morphology with near-spheroidal and curling fine thread-like shape. The ultrasonic can effectively refine the eutectic cells structure and improve the mechanical properties of grey cast iron. The results of SEM indicate that the ultrasonic can improve the wettability between graphite and metal matrix and enhance the affinity, and the fracture change from graphite delamination to graphite cleavage. So the ultrasonic can effectively control the changes of graphite morphology of the solidified structure of grey cast iron and is an effective method of improving grey iron properties.

关键词： ultrasonic treatment grey cast iron solidification graphite morphology cleavage fracture

作者: Li Junwen Xu Guang

作者单位: School of Mechanical Engineering, Jiangnan University, Wuxi 214122, China College of Material Scienc College of Material Science and Engineering, Liaoning University of Technology, Jinzhou 121001, Chin

会议类型: 国际会议

会议名称: The 11th Asian Foundry Congress(第11届亚洲铸造会议 AFC-11)

会议地点: 广州

会议语种:英文

页码: 1-5

在线出版日期: 2011-11-12（万方平台首次上网日期，不代表论文的发表时间）