Diffusion of carbon and titanium in γ-iron in a magnetic field and a magnetic field gradient
Diffusion of carbon and titanium in γ-iron in a magnetic field and a magnetic field gradient
复制标题
DOI：
10.1007/s10853-005-2683-3
复制
发表时间：
2005-06-01
影响因子：
4.5
通讯作者：
Chiba, A
中科院分区：
文献类型：
--
作者：
Nakamichi, S;Tsurekawa, S;Chiba, A
在6 T磁场和30 ~ 45 T/m的磁场梯度下测量了碳和钛在γ-Fe中的扩散系数。我们发现，在6 T磁场的作用下，γ-铁中碳的扩散受到阻碍。与碳扩散相反，没有观察到磁场对钛在γ-铁中的扩散率的显著影响。另一方面，当碳原子向具有较高磁场强度的方向移动时，在磁场梯度中，碳在γ-铁中的扩散可以被增强。磁场梯度强度越高，碳扩散越增强。然而，当施加相反的磁场梯度时，磁场梯度导致γ-铁中碳的扩散率降低。(c)2005 Springer Science + Business Media，Inc.
The diffusion coefficients of carbon and titanium in gamma-iron were measured in a 6T magnetic field and in magnetic field gradients ranging from 30 to 45 T/m. We have found that the diffusion of carbon in gamma-iron is retarded by application of a 6T magnetic field. In contrast with carbon diffusion, no noticeable effect of a magnetic field on the diffusivity of titanium in gamma-iron is observed. On the other hand, the diffusion of carbon in gamma-iron can be enhanced in a magnetic field gradient when carbon atoms move towards the direction with a higher magnetic field strength. The higher the magnetic field gradient strength becomes, the more the carbon diffusion is enhanced. Nevertheless, a magnetic field gradient causes a decrease in diffusivity of carbon in gamma-iron when the opposite magnetic field gradient is applied. (c) 2005 Springer Science + Business Media, Inc.