Glass forming ability in the Zr-Nb-Ni-Cu-Al bulk metallic glasses

被引：40

作者：

Hays, CC ^{[1
]}

Schroers, J

Geyer, U

Bossuyt, S

Stein, N

Johnson, WL

机构：

[1] CALTECH, Dept Mat Sci, Pasadena, CA 91125 USA

[2] Univ Gottingen, Inst Phys 1, DE-37073 Gottingen, Germany

来源：

METASTABLE, MECHANICALLY ALLOYED AND NANOCRYSTALLINE MATERIALS, PTS 1 AND 2 | 2000年 / 343-3卷

关键词：

bulk metallic glasses; electrostatic levitation; glass formation;

D O I：

10.4028/www.scientific.net/MSF.343-346.103

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A Zr58.5Nb2.8Cu15.6Ni12.8Al10.3 (at.%) alloy was found to have an improved bulk glass forming ability compared to neighboring compositions in the Zr-Nb-Cu-Ni-Al phase diagram. This alloy is the first bulk glass forming liquid, that does not contain beryllium, to be vitrified by purely radiative cooling in the containerless electrostatic levitation process. Thus, the critical cooling rate for this alloy is less than approximate to 10 Ws. This composition is a prime example of how the glass forming ability can vary with the topology of the composition manifold for small changes in the Zr-Nb and Cu-Ni-Al ratios.

引用

页码：103 / 108

页数：6

共 4 条

[1] METALLIC-GLASS FORMATION IN HIGHLY UNDERCOOLED ZR41.2TI13.8CU12.5NI10.0BE22.5 DURING CONTAINERLESS ELECTROSTATIC LEVITATION PROCESSING [J].