Bulk metallic glasses: Smaller is softer

被引：210

作者：

Huang, Y. J. ^{[1
]}

Shen, J. ^{[1
]}

Sun, J. F. ^{[1
]}

机构：

[1] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 08期

关键词：

D O I：

10.1063/1.2696502

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The authors report on the dramatic effect of sample size on the plastic deformation capability of a Ti-based bulk metallic glass. Compared with the larger one, the smaller size glassy alloy with the same chemical composition exhibits significantly enhanced plasticity, suggesting a "smaller is softer" trend of metallic glasses. The phenomenon is attributed to the fact that the smaller size alloy, which experienced a faster cooling rate during solidification, contains a larger amount of heats of relaxation and crystallization, favoring the preferential nucleation of shear bands and thus allowing enhanced plasticity upon compressive loading. (c) 2007 American Institute of Physics.

引用

页数：3

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