本文研究了不同含量的Bi偏析于Cu的∑=5B(210)/〔001〕对称倾转晶界的原子结构.本文发现最重要的结构效应,是不同原子位置的偏析能的强烈不均匀性,以及在晶界区形成二维有序合金结构.并发现1.25单层是饱和偏析浓度.
Atomic structure of the ∑=5B(210)/[001] symmetrical tilt bound-ary in Cu containing different amount of segregated Bi has been investigated. Themost important structural effects found in this study are strong anisotropy of thesegregation energy for different sites and formation of an ordered alloy structurein the region of the grain boundary. A saturation level of 1.25 monolayers beyondwhich no further segregation can occur, was found.
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