本文用经验电子论的键距差分析法计算了Fe-Cr“σ”相的价电子结构,结果表明σ相中存在原子间共价电子数的明显不均匀性.可以认定,这种不均匀性是σ相脆性的原因之一.
The valence electron structure of the Fe-Cr σ-phase was analyzed by themethod of the bond distances based on the empirical electron theory of solidsor molecules.The covalent bond electrons are shown to be remarkably distributedirregularly.This seems to be one of the possible reason why the Fe-Cr σ-phaseembrittles.
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