摘要
进行了铬元素降低硼化物层脆性实验验证 ,用EET(ExperimentalElectronTheory)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 。
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.
出处
《材料热处理学报》
EI
CAS
CSCD
北大核心
2001年第4期36-39,共4页
Transactions of Materials and Heat Treatment
基金
山东省自然科学基金资助 (Y98F1 1 0 92 )
关键词
EET理论
FeB相
价电子结构
本质脆性
渗
硼
铬
micro addition chromium
experimental electron theory(EET)
valence electron structure
substantially brittleness
