Thermoplastic extrusion of bulk metallic glass

被引：71

作者：

Chiu, Ho Ming ^{[1
]}

Kumar, Golden ^{[1
]}

Blawzdziewicz, Jerzy ^{[1
]}

Schroers, Jan ^{[1
]}

机构：

[1] Yale Univ, New Haven, CT 06511 USA

来源：

SCRIPTA MATERIALIA | 2009年 / 61卷 / 01期

基金：

美国国家科学基金会;

关键词：

Bulk metallic glass; Extrusion; Thermoplastic forming; SUPERCOOLED LIQUID-STATE; GAS-ATOMIZED POWDERS; AMORPHOUS ALLOY; WARM EXTRUSION; MECHANICAL-PROPERTIES; MATRIX COMPOSITES; SWELL PROBLEM; VISCOUS-FLOW; CONSOLIDATION; BEHAVIOR;

D O I：

10.1016/j.scriptamat.2009.02.052

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Extrusion of Zr44Ti11Cu10Ni10Be25 bulk metallic glass in its supercooled liquid state is explored as a method to create objects of a fixed cross-sectional profile. The effect of processing parameters and extrusion geometries on the extrusion length is determined. The results reveal the nature of the flow process as creeping flow. Profile lengths of up to 50 cm are achieved using a 2-mm diameter die with a tapered length which theoretically results in a zero effective die length. (c) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

收藏

页码：28 / 31

页数：4

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