Ion irradiation induced nanocrystal formation in amorphous Zr55Cu30Al10Ni5 alloy

被引：39
|
作者：
Carter, Jesse [1 ]
Fu, E. G. [2 ]
Martin, Michael [1 ]
Xie, Guoqiang [3 ]
Zhang, X. [2 ]
Wang, Y. Q. [4 ]
Wijesundera, D. [5 ,6 ]
Wang, X. M. [5 ,6 ]
Chu, Wei-Kan [5 ,6 ]
McDeavitt, Sean M. [1 ]
Shao, Lin [1 ]
机构：
[1] Texas A&M Univ, Dept Nucl Engn, College Stn, TX 77843 USA
[2] Texas A&M Univ, Dept Mech Engn, College Stn, TX 77843 USA
[3] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan
[4] Los Alamos Natl Lab, Los Alamos, NM 87545 USA
[5] Univ Houston, Texas Ctr Superconduct, Houston, TX 77204 USA
[6] Univ Houston, Dept Phys, Houston, TX 77204 USA
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2009年 / 267卷 / 17期
关键词：
Metallic glass; Ion irradiation; Crystallization; BULK METALLIC GLASSES; ELECTRON-IRRADIATION; MECHANICAL-PROPERTIES; THERMAL CRYSTALLIZATION; SUPERCOOLED LIQUID; ZIRCONIUM ALLOYS; TEMPERATURE; BEHAVIOR; PHASE; TRANSFORMATION;
D O I：
10.1016/j.nimb.2009.05.068
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Ion irradiation can be used to induce partial crystallization in metallic glasses to improve their surface properties. We investigated the microstructural changes in ribbon Zr55Cu30Al10Ni5 metallic glass after 1 MeV Cu-ion irradiation at room temperature, to a fluence of 1.0 x 10(16) cm(-2). In contrast to a recent report by others that there was no irradiation induced crystallization in the same alloy [S. Nagata, S. Higashi, B. Tsuchiya, K. Toh, T. Shikama, K. Takahiro, K. Ozaki, K. Kawatusra, S. Yamamoto, A. Inouye, Nucl. Instr. and Meth. B 257 (2007) 420], we have observed nanocrystals in the as-irradiated samples. Two groups of nanocrystals, one with diameters of 5-10 nm and another with diameters of 50-100 nm are observed by using high resolution transmission electron microscopy. Experimentally measured planar spacings (d-values) agree with the expectations for Cu10Zr7, NiZr2 and CuZr2 phases. We further discussed the possibility to form a substitutional intermetallic (NixCu1-x)Zr-2 phase. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：2827 / 2831
页数：5
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