中國(guó)有色金屬學(xué)報(bào)(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 1 No. 1 October 1991 |
GRAIN BOUNDARY SEGREGATION OF BORON IN NICKEL AND EFFECT OF MOLYBDENUM ADDITIONS
Chu Youyi, Ji Ping, Tang Li, Ke Jun(T.Ko)
（University of Science and Technology Beijing,Beijing 100083. China）
Abstract:Hy means of particle tracking autoradiography it has been found that there exists a strong tendency of equilibrium grain boundary segregation of Bin Ni with binding energy of 18±2 kJ/mol. In Ni-Mo-B alloys the segregation is alleviated. For additions of 0.5% and 3% Mo the grain boundary binding energies of B decrease to 14 1 1 kJ / moYand 13±1 kJ / mol respectively.
Key words: grain boundary, segregation, autoradiography
