中国有色金属学报(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 23 No. 8 August 2013 |
（1. School of Materials Science and Engineering, Dalian University of Technology, Dalian 116085, China;
2. Engineering Department of Pressure Vessels and Storage and Transport Equipment,
Hefei General Machinery Research Institute, Hefei 230088, China）
Abstract:The effect of high magnetic field on the atomic interdiffusion in Ni-Cu system was studied using the Cu/Ni/Cu diffusion couples. During the atomic interdiffusion in Ni-Cu system, it was found that the interdiffusion coefficients increased with the increase of molar fraction of Ni atoms in the interdiffusion zones when the couples were annealed with or without the magnetic field. It was noted that all corresponding interdiffusion coefficients under the magnetic field are smaller than those without the magnetic field. The results demonstrate that the magnetic field retards the atomic interdiffusion in Ni-Cu system. This retardation is achieved through reducing the frequency factors but not changing the interdiffusion activation energies.
Key words: Ni-Cu system; high magnetic field; atomic interdiffusion; diffusion couple
