Enhanced plasticity in the Zr-Cu-Ni-Al-Nb alloy system by in-situ formation of two glassy phases

被引：20

作者：

Chen, S. S. ^{[1
]}

Todd, I. ^{[1
]}

机构：

[1] Univ Sheffield, Dept Mat Sci & Engn, Sheffield S1 3JD, S Yorkshire, England

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2015年 / 646卷

关键词：

Phase separation; Bulk metallic glasses; Shear bands; Separation length; Elastic modulus; Plasticity; BULK METALLIC-GLASS; MECHANICAL-PROPERTIES; FORMING ABILITY; SEPARATION; BEHAVIOR;

D O I：

10.1016/j.jallcom.2015.05.140

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

By micro-alloying a Zr-Cu-Ni-Al bulk metallic glass with different amount of Nb, the microstructure changes from single-phase to two-glassy-phases and, correspondingly, their room-temperature plastic strain significantly increases from 2 to similar to 20%. Theoretical calculations suggest that the enhanced room-temperature plasticity may not only depend on separation length but also on small difference in shear modulus between two glassy phases. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：973 / 977

页数：5

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