用紧束缚能带计算方法(EHT)研究了标题多元合金的能带及电子结构。发现少量的多种元素在γ-TiAl中掺杂,对合金中电荷分布的影响,具有单种元素掺杂的叠加性;选择适当的合金元素就能达到多种掺杂的性能互补。多种元素掺杂能更有效地使成键电子云趋势于球形化,Peierls力均称为化,有利于增加γ-TiAl合金的塑性和变形性。 Tight bond band calculation (EHT) was used to study the band structure and electronic structure of the title multivalloy. It is found that the addition of a small amount of various elements in γ-TiAl doping on the charge distribution in the alloy has the additive effect of single-element doping; and the selection of suitable alloying elements can achieve the performance complementarity of various doping. The doping of various elements can more effectively make the electron-cloud transition trend become spherical, Peierls force is called, is conducive to increasing the plasticity and deformation of γ-TiAl alloy.