CONSTRUCTION OF FREE-ENERGY DIAGRAMS OF AMORPHOUS-ALLOYS

被引：98

作者：

ALONSO, JA ^{[1
]}

GALLEGO, LJ ^{[1
]}

SOMOZA, JA ^{[1
]}

机构：

[1] UNIV SANTIAGO COMPOSTELA,FAC FIS,DEPT FIS MAT CONDENSADA,LA CORUNA,SPAIN

来源：

NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA D-CONDENSED MATTER ATOMIC MOLECULAR AND CHEMICAL PHYSICS FLUIDS PLASMAS BIOPHYSICS | 1990年 / 12卷 / 4-5期

关键词：

Amorphous materials; glasses; mixing; Phase diagrams and microstructures developed by solidification and solid-solid phase transformations; Solubility segregation;

D O I：

10.1007/BF02453312

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Free-energy diagrams of amorphous alloys are constructed using Miedema's semiempirical model of heats of formation. These diagrams account for the experimental glass-forming concentration range in binary alloys of transition metals. One of the main factors controlling glass formation is the elastic contribution to the heat of mixing of the solid solution phase. Free-energy diagrams of this kind are also useful for interpreting some characteristic processes occurring in amorphous systems, such as the spontaneous vitrification observed by Von Allmen and coworkers in several Ti-based and Nb-based alloys. © 1990 Società Italiana di Fisica.

引用

页码：587 / 595

页数：9

共 22 条

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