在直流磁场作用下制备了Al-Si共晶自生复合材料，其组织发生共晶分离，在试棒外表层形成硅的富集层，其厚度随磁感应强度的增大而增加。探讨了直流磁场对自生复合材料微观组织形成规律的影响机理。
Eutectic Al-Si composite in situ was fabricated under the condition of direct magnetic field. Eutectic segregate happened,which formed the enrichment layer of silicon in the cylindrical sample surface, and the thickness of the segregation layer grows with the increase of the magnetic induction intensity. Effect mechanism of the direct magnetic field on the microstructures' formation disciplinarian of composite in situ has been discussed.
参考文献
| [1] | ［1］ 董洪标， 计永毅，等. 自生复合Al11La3/Al共晶材料的轴向拉伸性能及其断裂机制［J］． 复合材料学报，1994,11(2):15. |
| [2] | ［2］ 金俊泽， 曹志强，等. 电磁搅拌作用下形成分离共晶的研究［J］．金属学报，1995,31(8):B374. |
| [3] | ［3］ Alireza Radjai, Kenji Miwa, Toshiyuki Nishio. An investigation of the effects caused by electromagnetic vibrations in a hypereutectic Al-Si alloy melt［J］. Talluegical And Materials Trsnsactions A, 1998, 29A:1477. |
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