摘要
用经验电子理论 (EET)对Al-Mg -Si合金中主要成分 (如α -Al、镁、硅 ,以及强化相 ( β -Mg2 Si)的价电子结构进行计算 ,计算结果表明各成分晶胞最强键上的共价电子对数与其密度、熔点、硬度、电负性有对应关系 ;Mg、Si原子上次强键的共价电子分布有利于 β相的形成 .
Based on the empirical electron theory(EET)the valence electron structure of α-Al,Mg,Si and equilibrium( β -Mg 2Si)phase in Al-Mg-Si alloy was calculated.The calculated results show that there are represent the correspondence between the co-valence electrons which distribute in the strongest bonds with the density,melting point,hardness and electronegativity,and the co-valence electrons which distribute in the second neighbor-bonds of Magnesium and Silicon are of benefit to the appearance of β phase.
出处
《湖南文理学院学报（自然科学版）》
CAS
2003年第4期9-11,共3页
Journal of Hunan University of Arts and Science(Science and Technology)
基金
国家自然科学基金项目 [5 0 0 610 0 1]
广西科学基金项目桂科配 [0 13 5 0 0 6]
桂科自 [0 0 0 70 2 0 ]
桂科基 [0 3 42 0 0 4-1]
广西"十百千人才工程"项目[2 0 0 12 0 7]
