共 50 条
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