Structure-property relations in bulk metallic Cu-Zr-Al alloys

被引:28
作者
Barekar, N. S. [1 ]
Pauly, S. [1 ]
Kumar, R. B. [2 ]
Kuehn, U. [1 ]
Dhindaw, B. K. [3 ]
Eckert, J. [1 ,4 ]
机构
[1] IFW Dresden, Inst Komplexe Mat, D-01069 Dresden, Germany
[2] Tata Steel Ltd, Jamshedpur 831001, Bihar, India
[3] Indian Inst Technol Ropar, Rupnagar 140001, Punjab, India
[4] Tech Univ Dresden, Inst Werkstoffwissensch, D-01062 Dresden, Germany
来源
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2010年 / 527卷 / 21-22期
关键词
Metallic glass; Tensile properties; Deformation-induced crystallisation; Twinning; GLASS-FORMING ABILITY; MECHANICAL-PROPERTIES; MARTENSITIC-TRANSFORMATION; COMPRESSIVE PLASTICITY; SUPERCOOLED LIQUID; HIGH-STRENGTH; MICROSTRUCTURE; TI; DEFORMATION; COMPOSITES;
D O I
10.1016/j.msea.2010.05.074
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The structure, thermal stability and tensile properties of (Cu0.5Zr0.5)(100-x)Al-x (x = 5, 6, 8) bulk metallic glasses have been investigated. A good correlation between glass transition and Young's modulus was observed. Moreover, the (Cu0.5Zr0.5)(100-x)Al-x (x = 5, 6, 8) bulk metallic glasses investigated in this work show a unique deformation behaviour in tension: next to a high fracture strength the specimens exhibit a detectable ductility before catastrophic failure. Deformation-induced nanocrystallization and formation of twins in the nanocrystals are believed to play a key role in enhancing the mechanical properties. Scanning electron microscope observations reveal a combination of vein-like patterns and cores with radiating veins on the tensile fracture surface. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:5867 / 5872
页数:6
相关论文
共 50 条
[1]   Extraordinary plasticity of ductile bulk metallic glasses [J].
Chen, Mingwei ;
Inoue, Akihisa ;
Zhang, Wei ;
Sakurai, Toshio .
PHYSICAL REVIEW LETTERS, 2006, 96 (24)
[2]   Microstructure and mechanical properties of slowly cooled Cu47.5Zr47.5Al5 [J].
Das, J. ;
Pauly, S. ;
Duhamel, C. ;
Wei, B. C. ;
Eckert, J. .
JOURNAL OF MATERIALS RESEARCH, 2007, 22 (02) :326-333
[3]   Work-hardenable ductile bulk metallic glass [J].
Das, J ;
Tang, MB ;
Kim, KB ;
Theissmann, R ;
Baier, F ;
Wang, WH ;
Eckert, J .
PHYSICAL REVIEW LETTERS, 2005, 94 (20)
[4]   Designing bulk metallic glass and glass matrix composites in martensitic alloys [J].
Das, J. ;
Pauly, S. ;
Bostroem, M. ;
Durst, K. ;
Goeken, M. ;
Eckert, J. .
JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 483 (1-2) :97-101
[5]   Mechanical properties of bulk metallic glasses and composites [J].
Eckert, J. ;
Das, J. ;
Pauly, S. ;
Duhamel, C. .
JOURNAL OF MATERIALS RESEARCH, 2007, 22 (02) :285-301
[6]   Microstructure controlled shear band pattern formation and enhanced plasticity of bulk metallic glasses containing in situ formed ductile phase dendrite dispersions [J].
Hays, CC ;
Kim, CP ;
Johnson, WL .
PHYSICAL REVIEW LETTERS, 2000, 84 (13) :2901-2904
[7]   Novel Ti-base nanostructure-dendrite composite with enhanced plasticity [J].
He, G ;
Eckert, J ;
Löser, W ;
Schultz, L .
NATURE MATERIALS, 2003, 2 (01) :33-37
[8]   Unusual room-temperature compressive plasticity in nanocrystal-toughened bulk copper-zirconium glass [J].
Inoue, A ;
Zhang, W ;
Tsurui, T ;
Yavari, AR ;
Greer, AL .
PHILOSOPHICAL MAGAZINE LETTERS, 2005, 85 (05) :221-229
[9]   Stabilization of metallic supercooled liquid and bulk amorphous alloys [J].
Inoue, A .
ACTA MATERIALIA, 2000, 48 (01) :279-306
[10]   Formation, thermal stability and mechanical properties of Cu-Zr-Al bulk glassy alloys [J].
Inoue, A ;
Zhang, W .
MATERIALS TRANSACTIONS, 2002, 43 (11) :2921-2925