Effect of a controlled volume fraction of dendritic phases on tensile and compressive ductility in La-based metallic glass matrix composites

M. L. Lee; Y. Li; C. A. Schuh

doi:10.1016/j.actamat.2004.05.025

Effect of a controlled volume fraction of dendritic phases on tensile and compressive ductility in La-based metallic glass matrix composites

M. L. Lee
, Y. Li^*
, C. A. Schuh

^*此作品的通讯作者

National University of Singapore
Massachusetts Institute of Technology

科研成果: 期刊稿件 › 文章 › 同行评审

236 引用（Scopus）

摘要

A systematic study has been carried out to identify the effect of crystalline second phase reinforcements on the mechanical properties of amorphous alloys based on the composition La_86-yAl₁₄(Cu, Ni)_y (y = 1-24). By varying the composition in a controlled manner, composites with a tailorable fraction of in situ dendritic reinforcements were produced. Tension, compression and impact tests showed considerably improved mechanical properties with a large amount of plasticity when the reinforcement volume fraction exceeded a critical value near 40%, and the tension/compression asymmetry associated with glass plasticity is reduced as the volume fraction of crystalline reinforcements rises.

源语言	英语
页（从-至）	4121-4131
页数	11
期刊	Acta Materialia
卷	52
期	14
DOI	https://doi.org/10.1016/j.actamat.2004.05.025
出版状态	已出版 - 16 8月 2004
已对外发布	是

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abstract = "A systematic study has been carried out to identify the effect of crystalline second phase reinforcements on the mechanical properties of amorphous alloys based on the composition La86-yAl14(Cu, Ni)y (y = 1-24). By varying the composition in a controlled manner, composites with a tailorable fraction of in situ dendritic reinforcements were produced. Tension, compression and impact tests showed considerably improved mechanical properties with a large amount of plasticity when the reinforcement volume fraction exceeded a critical value near 40\%, and the tension/compression asymmetry associated with glass plasticity is reduced as the volume fraction of crystalline reinforcements rises.",

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AU - Lee, M. L.

AU - Li, Y.

AU - Schuh, C. A.

PY - 2004/8/16

Y1 - 2004/8/16

N2 - A systematic study has been carried out to identify the effect of crystalline second phase reinforcements on the mechanical properties of amorphous alloys based on the composition La86-yAl14(Cu, Ni)y (y = 1-24). By varying the composition in a controlled manner, composites with a tailorable fraction of in situ dendritic reinforcements were produced. Tension, compression and impact tests showed considerably improved mechanical properties with a large amount of plasticity when the reinforcement volume fraction exceeded a critical value near 40%, and the tension/compression asymmetry associated with glass plasticity is reduced as the volume fraction of crystalline reinforcements rises.

AB - A systematic study has been carried out to identify the effect of crystalline second phase reinforcements on the mechanical properties of amorphous alloys based on the composition La86-yAl14(Cu, Ni)y (y = 1-24). By varying the composition in a controlled manner, composites with a tailorable fraction of in situ dendritic reinforcements were produced. Tension, compression and impact tests showed considerably improved mechanical properties with a large amount of plasticity when the reinforcement volume fraction exceeded a critical value near 40%, and the tension/compression asymmetry associated with glass plasticity is reduced as the volume fraction of crystalline reinforcements rises.

KW - Bulk amorphous materials

KW - Composites

KW - Mechanical properties

UR - https://www.scopus.com/pages/publications/3242731507

U2 - 10.1016/j.actamat.2004.05.025

DO - 10.1016/j.actamat.2004.05.025

M3 - 文章

AN - SCOPUS:3242731507

SN - 1359-6454

VL - 52

SP - 4121

EP - 4131

JO - Acta Materialia

JF - Acta Materialia

IS - 14

ER -

Effect of a controlled volume fraction of dendritic phases on tensile and compressive ductility in La-based metallic glass matrix composites

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