Application of ultrasonic irradiation in as-cast ZA27 alloy

摘要：

The ZA27 alloy melt in the clay-graphite crucible was treated with strong ultrasonic irradiation during the solidification. The effects of ultrasonic irradiation power on the microstructure and mechanical properties of ZA27 zinc-based alloy were investigated by OM, SEM material tester and MRH-01A block-on-ring test machine. The results show that the microstructure and mechanical properties are improved after the ultrasonic irradiation. The best results optimizing the microstructure and mechanical properties were obtained with the ultrasonic irradiation power of 1,500 W and irradiation duration of 120 s. The cavitation and acoustic streaming caused by ultrasonic irradiation play a major role in refining the microstructure and increasing mechanical properties of the ZA27 alloy.

关键词： ZA27 alloy ultrasonic irradiation power microstructure wearing width HRB

作者: Li Junwen

作者单位: School of Mechanical Engineering, Jiangnan University, Wuxi 214122, China

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）