铸造2012，Vol.61Issue(11)：1348-1351,4.
熔体过热处理对过共晶Al-Si合金微观组织的影响
Effect of Melt Superheating Treatment on Microstructure of Hypereutectic Al-Si Alloys
邱美玲 1水丽2
作者信息
- 1. 沈阳理工大学材料科学与工程学院,辽宁沈阳110159
- 2. 沈阳理工大学机械学院,辽宁沈阳110159
- 折叠
摘要
Abstract
The effect of melt superheating treatment on microstntcture of primary silicon was studied in Al-Si alloys with 12.6 wt.%, 15 wt.%, 18 wt.% and 25wt.% silicon content. The alloys were superheated at 600-1 100 ℃ and cooled with a constant cooling rate of'3.5 K/s. We used the CAZ-2MAY metallographic analysis software to test the particle morphology, size distribution, initial volume fraction and the shape factor of crystalline silicon particles. The experimental results show that the size of primary silicon particle decreased with increasing superheating temperature. The volume fraction of primary silicon particle showed a slightly decrease with the increasing superheating temperature.关键词
熔体过热处理/初晶硅/微观组织Key words
melt superheating treatment/ primary silicon/ microstructure分类
矿业与冶金引用本文复制引用
邱美玲,水丽..熔体过热处理对过共晶Al-Si合金微观组织的影响[J].铸造,2012,61(11):1348-1351,4.
