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微量铬元素对FeB相价电子结构的影响
引用本文:宋月鹏,冯承明,许斌.微量铬元素对FeB相价电子结构的影响[J].材料热处理学报,2001,22(4):36-39.
作者姓名:宋月鹏  冯承明  许斌
作者单位:山东农业大学机械与电子工程学院,山东泰安,271018
基金项目:山东省自然科学基金资助 (Y98F1 1 0 92 )
摘    要:进行了铬元素降低硼化物层脆性实验验证,用EET(Experimental Electron Theory)理论,着重分析了微量铬元素对FeB相价电子结构的影响。认为:铬原子置换FeB相中的Fe原子,可改善FeB相空间键络分布不均匀的状况,使强键与弱键差值减小,提高弱键的键能,对其他键也有不同程度的强化作用,从而降低FeB相的本质脆性。

关 键 词:EET理论  FeB相  价电子结构  本质脆性      
文章编号:1009-6264(2001)04-0036-04

Effect of Micro-addition Chromium on the Valence Electron Structure of FeB Phase
SONG Yuepeng,FENG Chengming,XU Bin.Effect of Micro-addition Chromium on the Valence Electron Structure of FeB Phase[J].Transactions of Materials and Heat Treatment,2001,22(4):36-39.
Authors:SONG Yuepeng  FENG Chengming  XU Bin
Abstract:The brittleness of borinized layer with and without micro addition chromium were investigated. The effect of micro addition chromium on the valence electron structure of FeB phase was analyzed with EET theory(Experimental Electron Theory). The results show that due to the chromium atom replases the iron atom, all bonds of the FeB phase will be enhanced, especially the weak bond (Fe1 Fe5). Moreover, the spatial bond net will become balanced. Therefore, in comparison with pure FeB phase, the intrinsic brittleness of FeB phase containing chromium will be lower.
Keywords:micro  addition chromium  experimental electron theory(EET)  valence electron structure  substantially brittleness
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