摘要
利用电子理论计算了Ｆｅ＿３Ａｌ和ＦｅＡｌ金属间化合物的价电子结构和键能，分析了电子分布和晶体键络特性与其室温脆性之间的关系．提出了韧化Ｆｅ—Ａｌ系金属间化合物的可能途径．
n the light of the valence electron structures and bond energy calculated by the empirical electron theory of solids and molecules(E.E.T),the relationship of embrittlement with the bond structures and electron distributions in Fe3Al and FeAl intermetallic compounds is analyzed.Some questions on the embrittlement and fracture modes of Fe3Al and FeAl,which can not be satisfactorily explained by the present view of environmental embritllement,are answered.In the end of this paper,the methods are proposed to improve the ductilities of Fe3AI and FeAl.
出处
《材料研究学报》
EI
CAS
CSCD
1996年第3期230-234,共5页
Chinese Journal of Materials Research
关键词
价电子结构
键能
脆性
金属间化合物
e_3Al FeAl valence electron structure bond energy embrittlement
