Mechanical properties of tungsten and steel fiber reinforced Zr41.25Ti13.75Cu12.5Ni10Be22.5 metallic glass matrix composites

被引：454

作者：

Conner, RD ^{[1
]}

Dandliker, RB

Johnson, WL

机构：

[1] CALTECH, WM Keck Lab Engn Mat, Pasadena, CA 91125 USA

[2] Mitchell Madison Grp, San Francisco, CA 94111 USA

来源：

ACTA MATERIALIA | 1998年 / 46卷 / 17期

关键词：

D O I：

10.1016/S1359-6454(98)00275-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

To increase the toughness of a metallic glass with the nominal composition Zr41.25Ti13.75Cu12.5Ni10Be22.5, it was used as the matrix in continuous fiber composites reinforced with tungsten and 1080 steel wire. The composites were tested in compression and tension experiments. Tungsten reinforcement increased compressive strain to failure by over 900% compared to the unreinforced Zr41.25Ti13.75Cu12.5Ni10Be22.5. The increase in compressive toughness comes from the fibers restricting shear band propagation, promoting the generation of multiple shear bands and additional fracture surface area. There is direct evidence of viscous flow of the metallic glass matrix within the confines of the shear bands. Samples reinforced with steel had increased tensile strain to failure and energy to break of 13 and 18%, respectively. Tensile toughness increased as a result of ductile fiber delamination, fracture, and fiber pullout. (C) 1998 Acta Metallurgica Inc. Published by Elsevier Science Ltd. All rights reserved.

引用

页码：6089 / 6102

页数：14

共 30 条

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