对强磁场作用下Bi--Mn合金分别从全熔态和从固液两相区开始的凝固过程及其组织的实验研究表明, 磁场使初生MnBi相在试样外侧呈环状偏聚, 其自身生长为棒状, 棒的长轴沿磁 场方向呈定向规则排列, 而试样心部基本无初生MnBi相.在Curie点以上开始进行较慢的凝固时, 由片状聚合而成的棒状MnBi具有单晶特征. 对以上现象的形成原因进行了分析.
The influences of high intensity magnetic field on the solidification structure of Bi--Mn alloys in semi--solidified as well as melted state have been investigated experimentally. It is found that under the magnetic field of 10T, MnBi phase moves towards to and accumulates at the periphery of the specimen, forming a ring--like MnBi phase--rich layer where the rod--like MnBi phase aligned along the magnetic direction, and no primary MnBi in the center of the sample is found. Slow solidification above the Curie point makes the rod--like MnBi phases evolve into single crystal gradually. The above phenomena is analyzed and discussed.
参考文献
| [1] | |
| [2] | |
| [3] | |
| [4] | |
| [5] | |
| [6] | |
| [7] | |
| [8] | |
| [9] | |
| [10] | |
| [11] |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%