Stability and phase transformation of icosahedral phase in a 41.5Zr41.5Ti17Ni alloy

被引：43

作者：

Yi, S ^{[1
]}

Kim, DH ^{[1
]}

机构：

[1] Yonsei Univ, Dept Met Engn, Ctr Noncrystalline Mat, Seoul, South Korea

来源：

JOURNAL OF MATERIALS RESEARCH | 2000年 / 15卷 / 04期

关键词：

D O I：

10.1557/JMR.2000.0127

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Phase stability and transformations of the icosahedral phase (I-phase) in a 41.5Zr41.5Ti17Ni alloy were investigated using melt-spun ribbons and are-melted bulk samples. A perfect I-phase can be formed directly from liquid through the melt-spinning technique. The I-phase formed in the ribbon is thermodynamically stable and transforms to W-phase, a 1/1 rational approximant above 565 degrees C. Formation of the perfect I-phase during annealing treatment of the are-melted sample is very sluggish. Various types of approximants exist as intermediate states for the transformation of crystalline phases to a perfect I-phase.

引用

页码：892 / 897

页数：6

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