Mechanism of Melt Treatment Improving Thermal Stability and Glass Forming Ability of the Al-Ni-Y Amorphous Alloy

被引：0

作者：

Mu, Juan ^{[1
]}

Ge, Jingqi ^{[2
]}

Li, Wen ^{[2
]}

Zhang, Haifeng ^{[1
]}

Hu, Zhuangqi ^{[1
]}

机构：

[1] Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China

[2] Shenyang Ligong Univercity, Shenyang 110159, Peoples R China

来源：

APPLICATIONS OF ENGINEERING MATERIALS, PTS 1-4 | 2011年 / 287-290卷

基金：

中国国家自然科学基金;

关键词：

amorphous alloy; melt treatment; glass forming ability; thermal stability; high-melting-temperature phase; BULK METALLIC GLASSES; CASTING TEMPERATURE; SUPERALLOY; SYSTEMS;

D O I：

10.4028/www.scientific.net/AMR.287-290.1144

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The mechanism of melt treatment improving the glass forming ability (GFA) and thermal stability of the Al84.5Ni5.5Y10 (in atomic percentage) alloy was studied. An yttrium-rich metastable high-melting-temperature-phase is found to be responsible for the deterioration of GFA because it induces the heterogeneous nucleation of the crystals in the solidification process. It can be eliminated through melt treatment as adopted in this paper, resulting in stabilizing the thermal stability of the undercooled melt and enhancing the GFA of the investigated alloy with higher thermal stability for the resultant amorphous phase.

引用

页码：1144 / +

页数：2

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