On the fragility and thermomechanical properties of Mg-Cu-Gd-(B) bulk metallic glasses

被引：17

作者：

Chang, Y. C. ^{[1
]}

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

Cheng, Y. T. ^{[1
]}

Lee, C. J. ^{[1
]}

Du, X. H. ^{[1
,2
]}

Nieh, T. G. ^{[3
]}

机构：

[1] Natl Sun Yat Sen Univ, Inst Mat Sci & Engn, Ctr Nanosci & Nanotechnol, Kaohsiung 804, Taiwan

[2] Shenyang Inst Aeronaut Engn, Dept Mat Engn, Shenyang 110034, Peoples R China

[3] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2008年 / 103卷 / 10期

关键词：

D O I：

10.1063/1.2927459

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this study, the viscous flow behavior and thermomechanical properties of Mg65Cu25-xBxGd10 (x=0 and 3 at. %) bulk metallic glasses (BMGs) in the supercooled liquid region have been investigated by using differential scanning calorimetry and thermomechanical analyzer. It has been found that the fragility of the supercooled liquid is reduced by the boron addition, thus, degrading the deformability. This conclusion is supported by the many other extracted parameters. Thus, even with much higher hardness, the B-additive Mg based BMG will be more difficult to be formed, which appears to be a negative factor in applying in the microforming or nanoimprinting industry. (C) 2008 American Institute of Physics.

引用

页数：6

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