Two-glassy-phase bulk metallic glass with remarkable plasticity

被引：132

作者：

Du, X. H.

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

Hsieh, K. C.

Lai, Y. H.

Chen, H. M.

Jang, J. S. C.

Liaw, P. K.

机构：

[1] Natl Sun Yat Sen Univ, Inst Mat Sci & Engn, Kaohsiung 80424, Taiwan

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

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

[4] I Shou Univ, Dept Mat Sci & Engn, Kaohsiung 840, Taiwan

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

来源：

APPLIED PHYSICS LETTERS | 2007年 / 91卷 / 13期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.2790380

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Using the computational-thermodynamic approach, the potential compositions of Zr-Cu-Ni-Al alloy system exhibiting the two-liquid miscibility phase equilibrium in the liquid temperature region have been identified. The resulting Zr base bulk metallic glasses show a microstructure of two microscaled glassy phases. The glass possesses a remarkable macroscopic plastic strain of 30% at room temperature. The gain of mechanical properties is attributed to the unique glassy structure correlated with the chemical inhomogeneity on the micron scale, the hard phases surrounded by the soft phases, leading extensive shear-band formation, interactions, and multiplication. (C) 2007 American Institute of Physics.

引用

页数：3