Composition formulas of Ni-(Nb, Ta) bulk metallic glasses

被引：12

作者：

Zhang, Shuang ^{[1
]}

Dong, Dandan ^{[1
]}

Wang, Zijian ^{[1
]}

Dong, Chuang ^{[1
]}

Haeussler, Peter ^{[2
]}

机构：

[1] Dalian Univ Technol, Key Lab Mat Modificat Laser, Minist Educ, Ion & Elect Beam, Dalian 116024, Peoples R China

[2] Tech Univ Chemnitz, Inst Phys, D-09107 Chemnitz, Germany

来源：

INTERMETALLICS | 2017年 / 85卷

关键词：

Metallic glasses; Alloy design; Electronic structure; Microstructure; Physical properties; STRUCTURAL MODEL; CLUSTER FORMULAS; PACKING;

D O I：

10.1016/j.intermet.2017.02.019

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

It is known that bulk metallic glass compositions can be well interpreted by cluster formulas for stable liquids [cluster](glue atom) 1 or 3, where the clusters are derived from relevant devitrification phases. In the present work, the glass forming composition formulas in Ni-Nb and Ni-Ta systems are fully examined. The procedures include choosing the appropriate eutectic crystalline phases, selecting the principal clusters via the criteria such as spherical periodicity and cluster isolation degree, and determining the glue atoms. After strictly following these procedures, the best glass forming compositions Ni62Nb38 in Ni-Nb system and the range 59-62 at.% Ni in Ni-Ta system are explained by formulas [Ni-Nb4Ni8] Nb2Ni and [M-Ni6Ta6] Ni-3 (M is a random mixture of Ni and Ta) respectively. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：176 / 179

页数：4

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