Relation between glass and quasicrystal formation in the Zr-Nb-Cu-Ni-Al alloys upon solidification

被引:20
|
作者
Zhu, Zhengwang [1 ]
Zhang, Wei [1 ]
Xie, Guoqiang [1 ]
Inoue, Akihisa [2 ]
机构
[1] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan
[2] Tohoku Univ, Adv Inst Mat Res, WPI, Sendai, Miyagi 9808577, Japan
关键词
aluminium alloys; amorphous state; cooling; copper alloys; crystal structure; glass structure; nickel alloys; niobium alloys; quasicrystals; short-range order; solidification; solid-state phase transformations; vitrification; zirconium alloys; FORMING ABILITY; PHASE-FORMATION; ORDER; LIQUIDS; MODEL; TA;
D O I
10.1063/1.3467827
中图分类号
O59 [应用物理学];
学科分类号
摘要
We reported the relationship among the icosahedral short-range order (ISRO), glass formation and quasicrystal formation in the Zr-Nb-Cu-Ni-Al alloys. The alloys with the Nb addition stabilized ISRO, making the alloys form the amorphous, quasicrystal and crystal with decreasing the cooling rate. Not only bulk glass but also bulk quasicrystal were found to form for these alloys. The structural evolution from the amorphous phase, to the quasicrystal and crystals with the variation in the Nb content or the cooling rate is present. These findings were related to the degree of ISRO, which are advantageous for understanding the glass formation phenomenon. (C) 2010 American Institute of Physics. [doi:10.1063/1.3467827]
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页数:3
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