中國有色金屬學(xué)報(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 7 No. 3 September 1997 |
EXAMINATION OF CARBON DIFFUSION IN TANTALUM CLAD STEEL COMPOSITE
Xia Changqing; Jin Zhanpeng
（Department of Materials Science and Engineering; Central South University of Technology; Changsha 410083）
Abstract:The Ta2C layer formed in the bonding interface of a tantalum clad steel composite with an intermediate layer of pure iron at 1 053 K for different times was examined metallographically and analyzed using the electron microprobe technique. The mechanism of Ta 2C phase diffusion layer formation was discussed using Fick's law assuming that stationary diffusion of carbon was established in tantalum/steel diffusion couples.
Key words: Ta 2C- phase carbon activity stationary diffusion
