Metallic glass formation in the Cu47Ti33Zr11Ni8Si1 alloy

被引：6
|
作者：
Venkataraman, S.
Bartusch, B.
Mickel, C.
Kim, K. B.
Das, J.
Scudino, S.
Stoica, M.
Sordelet, D. J.
Eckert, J.
机构：
[1] Tech Univ Darmstadt, FB Mat & Geowissensch 11, FG Phys Metallkunde, D-64287 Darmstadt, Germany
[2] Leibniz Inst Feskorper & Werkstoffforsch Dresden, D-01069 Dresden, Germany
[3] Sejong Univ, Dept Adv Mat Engn, Seoul 143747, South Korea
[4] Iowa State Univ, US DOE, Ames Lab, Mat & Engn Phys Program, Ames, IA 50014 USA
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2007年 / 444卷 / 1-2期
关键词：
metallic glasses; crystallization; DSC; TEM; short range order;
D O I：
10.1016/j.msea.2006.08.089
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Phase formation in the CU47Ti33Zr11Ni8Si1 alloy synthesized by various solidification techniques has been studied using X-ray diffraction (XRD). differential scanning calorimetry (DSC) and transmission electron microscopy (TEM) paying, in particular, attention to the TEM sample preparation. While a reduced cooling rate results in a duplex microstructure, consisting of nanocrystals in an amorphous matrix, glass formation is achieved upon employing a faster quenching rate. The difference in composition and quench temperature influence the phase transition upon heating. The essential differences observed in TEM, notwithstanding the ion-milling effects and the different pre-alloy ingots used for metallic glass synthesis, can be linked to differences in the nucleation and growth mechanism which, in turn, is influenced by the chemical short range order (CSRO) obtained upon quenching (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：257 / 264
页数：8
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