Viscous Flow Behavior and Workability of Mg-Cu-(Ag)-Gd Bulk Metallic Glasses

被引：9

作者：

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

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

Tang, C. W. ^{[1
]}

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

Jang, J. S. C. ^{[2
]}

机构：

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

[2] I Shou Univ, Dept Mat Sci & Engn, Kaohsiung 804, Taiwan

来源：

MATERIALS TRANSACTIONS | 2008年 / 49卷 / 11期

关键词：

metallic glasses; magnesium alloys; high temperature deformation; viscosity;

D O I：

10.2320/matertrans.MRA2008172

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The thermomechanical properties and viscous flow behaviors of the Mg65Cu25-xAgxGd10 (x = 0, 3, 10at%, namely, Mg65Cu25Gd10, Mg65Cu22Ag3Gd10, and Mg65Cu15Ag10Gd10) bulk metallic glasses in the supercooled viscous region under the loading condition were investigated using the thermomechanical analyzer. In this study, the supercooled viscous temperature windows, the minimum viscosity, the fragility parameter, and the deformability parameter would all be degraded with increasing Ag addition, leading to the negative factors for the micro-forming and nano-imprinting practices. The base Mg65Cu25Gd10 alloy appears to be more promising than the Ag containing alloys when the viscous forming is under consideration. [doi: 10.2320/matertrans.MRA2008172]

引用

页码：2605 / 2610

页数：6

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