GRAIN BOUNDARY SEGREGATION OF BORON IN NICKEL AND EFFECT OF MOLYBDENUM ADDITIONS

来源期刊：中国有色金属学报(英文版)1991年第1期

论文作者：Chu Youyi Ji Ping Tang Li Ke Jun

文章页码：50 - 56

Key words：grain boundary, segregation, autoradiography

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.