利用X射线衍射及透射电镜观察到单辊急冷法制备的BNi2(～Ni_(70)Cr_7Fe_3Si_3B_(12)条带的内部为正常非晶结构,而上下表层则由具有111纤维织构的Ni固溶体组成。这种结构不均匀性可用急冷条带形成时动量传导起主要作用来解释。此外还证实了BNi2非晶合金在晶化第二阶段析出的未知亚稳相为具有100与110纤维织构的M_(28)B_6型面心立方相,点阵常数约为1.04nm。
By using X-ray diffraction and TEM techniques, result has been shown that the inside of single roll quenched ribbon of BNi2 alloy, namely, Ni_(70)Cr_7-Fe_3Si_8B_(12) is amorphous but both the free and roll sides of this amorphous ribbon consist of Ni crystals with a preferred orientation of 111 parallel to the ribbon surface This structural inhomogeneity implys that the momentum transport mechanism plays an important role during the solidification process of this ribbon In addition, the unknown metastable phase appeared on the second stage of crystallization is a fcc phase with a≈1.04 nm of M_(23)B_6 type.
参考文献
| [1] | |
| [2] | |
| [3] | |
| [4] | |
| [5] | |
| [6] | |
| [7] | |
| [8] | |
| [9] | |
| [10] | |
| [11] | |
| [12] | |
| [13] | |
| [14] | |
| [15] | |
| [16] | |
| [17] | |
| [18] | |
| [19] |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%