CARBON DIFFUSION PATHS IN Ni-Ta-C SYSTEM
来源期刊:中南大学学报(英文版)1998年第2期
论文作者:Wang Richu Liu Libin Jin Zhanpeng
文章页码:9 - 12
Key words:diffusion path; diffusion couple; Ni-Ta-C; phase diagram; stability diagram
Abstract: Electron probe microanalysis and SEM were employed to study the phase equilibria and diffusion paths in C-Ni8Ta, C-Ni3Ta, C-Ni2Ta diffusion couples after annealed at 1100℃for 120 h or at 1200℃for 120 h and then at 1100℃for 24 h. Attempt was made to use the calculated stability diagram of carbon activity to explain the experimental observations. The phases formed in the diffusion layers were all in the prediced ranges.