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B~(10)(n,α)Li~7裂变反应的径迹显微照相技术被用来研究含硼Fe-30%Ni合金高温热变形再结晶过程中硼在晶界上的偏聚行为,实验表明,含硼Fe-30%Ni合金1000℃热变形20%再结晶过程中,运动晶界前方发生硼偏聚而后方发生贫硼现象,而在静止晶界上看不到硼偏聚,随着再结晶新晶粒的长大,运动晶界上的硼偏聚变弱。本文提出,可以用晶界对溶质原子热运动散射的量子理论来解释溶质原子在运动晶界上的偏聚现象。
The track photomicrography of the B ~ (10) (n, α) Li ~ 7 fission reaction was used to study the segregation behavior of boron on the grain boundaries during the high temperature thermal deformation recrystallization of boron-containing Fe-30% Ni alloys Experiments show that in the process of 20% recrystallization of thermal deformation at 1000 ℃ in boron-containing Fe-30% Ni alloy, boron segregation occurs in front of the grain boundary and boron deficiency occurs in the rear of the grain boundary, while boron segregation can not be observed in the stationary grain boundary With the growth of new recrystallized grains, segregation of boron on the moving grain boundaries becomes weaker. This paper proposes that the quantum theory of thermal motion scattering of solute atoms by grain boundaries can be used to explain the segregation of solute atoms at the moving grain boundaries.