摘要
用余氏理论计算了氢对Ｆｅ３Ａｌ金属间化合物键结构、键能和电子分布的影响，分析发现，Ｆｅ３Ａｌ的氢脆是由于氢原子溶入后引起Ｆｅ，Ａｌ原子状态变化，使晶体内晶格电子数大大减少，导致晶体局域金属性减弱，并构成具有严重各向异性的键络的结果．同时得出。
The effect of hydrogen on the bond structures.bond energy and electron distributions of intermetallic compound Fe3Al is investigated by Empirical Electron Theory of Solids and Molecules.The hydrogen embrittlement in Fe3Al is due to dissolving of hydrogen atoms to change the atomic state of Fe3Al resulting from the sharply reduction of lattice electrons,which cause the decrease of local metallicity,and the formation of severely anisotropic bond structures.At the same time,the hydrogen atoms may occupy the interstitial sites in Fe3Al.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
1995年第7期A300-A303,共4页
Acta Metallurgica Sinica
关键词
Fe3AI
价电子结构
氢脆
金属间化合物
Fe_3Al,bond energy,valence electron structures,hydrogen embritllement
