Ultrasonic Effect on Refinement of Mg2Si and Mechanical Properties of in situ Al-Mg-Si Composites

摘要：

Coarse primary Mg2Si was usually found in Al-Mg-Si alloys. In this experiment, to refine the coarse primary Mg2Si size, ultrasound was used as a new process. Ultrasound was injected to the molten Al-Mg-Si melts directly and its effect was significant. Average size of primary Mg2Si was reduced from 70μm to 15μm, morphology was also changed to polygonal from irregular shape. Moreover tensile strength was improved by 30％, from 112 to 148 after ultrasonic injection.

关键词： high intensive ultrasound Al-Mg-Si alloy primary Mg2Si refinement

作者: Dae-gyun KO Geun-Hong Yu Jeong-IL YOUN Young-jig KIM

作者单位: School of Advanced Materials Science and Engineering, Sungkyunkwan University, 300 Cheoncheon-dong, Jangan-gu, Suwon, 440-746, Korea

会议类型: 国际会议

会议名称: 第二届多功能材料与结构国际会议

会议地点: 青岛

会议语种:英文

页码: 549-552

在线出版日期: 2009-10-09（万方平台首次上网日期，不代表论文的发表时间）