ON THE NATURE OF THE RHENIUM EFFECT - PECULIARITIES OF THE BAND-STRUCTURE AND ELASTIC-MODULI OF W-BASED ALLOYS AND MO-BASED ALLOYS

被引：21

作者：

GORNOSTYREV, YN ^{[1
]}

KATSNELSON, MI ^{[1
]}

PESCHANSKIKH, GV ^{[1
]}

TREFILOV, AV ^{[1
]}

机构：

[1] IV KURCHATOV ATOM ENERGY INST,MOSCOW,USSR

来源：

PHYSICA STATUS SOLIDI B-BASIC RESEARCH | 1991年 / 164卷 / 01期

关键词：

D O I：

10.1002/pssb.2221640119

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In the rigid band approximation the electronic structure of W-Re and Mo-Re alloys is calculated and their band contribution to the elastic moduli C(ik). Critical Re concentrations are determined at which electronic topological transitions occur. An analysis of the computational results for C(ik) is invoked to discuss variations in the degree of "covalency" and "metallicity" of the chemical bonds in rhenium-doped tungsten. Consideration is given to the role of the elastic anisotropy constant of W-Re and Mo-Re alloys and to its effect on the individual dislocation mobility and plastic properties of these alloys.

引用

页码：185 / 193

页数：9