Quantitative determination of free volume in Pd40Ni40P20 bulk metallic glass

被引：40

作者：

Xu, Yuanli ^{[1
,2
,3
]}

Fang, Jixiang ^{[1
,3
]}

Gleiter, Herbert ^{[1
]}

Hahn, Horst ^{[1
,3
]}

Li, Jiangong ^{[2
]}

机构：

[1] Forschungszentrum Karlsruhe, Inst Nanotechnol, D-76021 Karlsruhe, Germany

[2] Lanzhou Univ, Inst Mat Sci & Engn, Lanzhou 730000, Peoples R China

[3] Tech Univ Darmstadt, Joint Res Lab Nanomat, D-64287 Darmstadt, Germany

来源：

SCRIPTA MATERIALIA | 2010年 / 62卷 / 09期

关键词：

Bulk metallic glass; Differential scanning calorimetry (DSC); Suction casting; Annealing; Free volume; STRUCTURAL RELAXATION; AMORPHOUS PD40NI40P20; TRANSITION; PRESSURE;

D O I：

10.1016/j.scriptamat.2010.01.025

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

For a long time, the determination of free volume has been a challenging problem in research on metallic glasses. An approach to determine quantitatively the free volume of metallic glasses from enthalpy measurements and calibration with the equilibrium free volume was developed and validated for as-cast and annealed Pd40Ni40P20 bulk metallic glasses. The free volume change with annealing time is in good agreement with that calculated theoretically from the free volume annihilation kinetics and that deduced from the density measurement results. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：674 / 677

页数：4

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