钨钼固溶体合金的价电子结构及其性能研究

Valence Electron Structure and Property of W-Mo Solid Solution Alloy

根据固体与分子的经验电子理论(EET),采用键距差(BLD)方法和平均原子模型分析了W-Mo固溶体合金的价电子结构。从电子结构层次探讨了合金元素对基体的固溶强化效应。结果表明,在一定范围内,随着Mo含量的增加,W-Mo固溶体最强键的共价电子数、W-Mo固溶体共价电子数占总价电子数的百分数也逐渐增加,表明固溶体合金的硬度、强度逐渐增加。

Based on the empirical electron theory （EET） of solid and molecule, valence electron structure of a W- Mo solid solution alloy was analyzed by bond length difference （BLD） method and an average atom model. A solution strengthening effect of matrix caused by alloying elements was explored in the level of electron structure. The results show that as the molybdenum content increases over a certain range so too do both the covalence electron number of the strongest bond and the ratio of the covalence electron number to the total valence electron number of the W-Mo solid solution, indicating the increase in hardness and strength of the W-Mo solid solution alloy.