Microstructure evolution behavior of AlSi9Cu3 alloy during rheocasting

摘要：

The experimental and analytical approaches were taken to investigate the non-dendritic microstructure formation and evolution of AlSi9Cu3 alloy during rheocasting. The results show that the globular primary a(Al) particles free of entrapped eutectic form after rheoeasting for 3 s, and could be morphologically stabilized during subsequent growth. The fine and globular particles underwent a coarsening process under quiescently continuous cooling in which the particle density decreases, the solid fraction increases, the average particle size increases with the increase of solidification time at a rate that closely followed the classical Ostwald ripening.

关键词： AlSi9Cu3 alloy microstructure evolution rheocasting interface instability growth coarsening

作者: GUO Hong-min LIU Xu-bo YANG Xiang-jie ZHANG Ai-sheng LIU Yong

作者单位: School of Materials Science and Engineering, Nanchang University, Nanchang 330031, China

会议类型: 国际会议

会议名称: The 11th International Conference on Semi-Solid Processing of Alloy and Composites(第11届合金与复合材料半固态成形国际会议)

会议地点: 北京

会议语种:英文

页码: 815-820

在线出版日期: 2010-09-16（万方平台首次上网日期，不代表论文的发表时间）