Plastic deformation of Pd41Ni10Cu29P20 bulk metallic glass

被引：17

作者：

Heggen, M ^{[1
]}

Spaepen, F

Feuerbacher, M

机构：

[1] Forschungszentrum Julich, Inst Festkorperforsch, D-52425 Julich, Germany

[2] Harvard Univ, Div Engn & Appl Sci, Cambridge, MA 02138 USA

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2004年 / 375卷

基金：

美国国家科学基金会;

关键词：

metallic glasses; free volume; deformation; modelling; creep;

D O I：

10.1016/j.msea.2003.10.054

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Creep experiments were performed on Pd41Ni10Cu29P20 bulk metallic glass at stresses between 30 and 636 MPa at a temperature of 550 K. Phenomenological activation parameters were determined. The creep curves were calculated by a model based on deformation-induced free volume. At low stresses, the defect concentration remained approximately constant. At higher stresses, a continuous increase of the strain rate was observed as a result of a rapid increase in free volume. The deformation remains homogeneous up to strain rates of about 10(-3) s(-1). (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：1186 / 1190

页数：5

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