Effect of Nb content on the microstructure and mechanical properties of Zr–Cu–Ni–Al–Nb glass forming alloys

2005 ◽  
Vol 403 (1-2) ◽  
pp. 239-244 ◽  
Author(s):  
Y.F. Sun ◽  
C.H. Shek ◽  
B.C. Wei ◽  
W.H. Li ◽  
Y.R. Wang
Keyword(s):  
Mechanical Properties ◽  
Glass Forming ◽  
Microstructure And Mechanical Properties ◽  
Nb Content

Effect of Nb Addition on the Structural and Mechanical Properties of Cu46Zr42Al7Y5 Bulk Metallic Glass

2011 ◽  
Vol 675-677 ◽  
pp. 201-204
Author(s):  
Y.L. Du ◽  
H.W. Xu ◽  
J.L. Cheng ◽  
Guang Chen
Keyword(s):  
Mechanical Properties ◽  
Amorphous State ◽  
Differential Scanning Calorimetric ◽  
Second Phase ◽  
Glass Forming ◽  
Copper Mold Casting ◽  
Mold Casting ◽  
Second Phase Particles ◽  
Nb Content ◽  
Nb Addition

In this work, the Cu46Zr42-xAl7Y5Nbx alloys with different Nb contents were prepared by water-cooled copper mold casting. The effects of Nb addition on the structural and mechanical properties were studied. It was found that the structure remains in amorphous state at low Nb concentration (x =1, 2). However, some crystalline phases appear in the high Nb content alloy (x > 2), showing a composite structure, that is, the second phase particles dispersed in an amorphous matrix. The effects of Nb on the glass-forming ability of Cu46Zr42Al7Y5 were studied by differential scanning calorimetric (DSC). The compressive mechanical properties of Cu46Zr42-xAl7Y5Nbx alloys were studied. It was found that the compressive strength can be improved by introducing Nb. However, the ductile of the alloys were not improved by the introduction of Nb.

scholarly journals The Effect of Cooling Rate on Microstructure and Mechanical Properties of Zr-Based Bulk Metallic Glasses

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Weihong Fu ◽  
Yajuan Sun ◽  
Wei Zhang
Keyword(s):  
Mechanical Properties ◽  
Cooling Rate ◽  
Metallic Glasses ◽  
Bulk Metallic Glasses ◽  
Alloy Sample ◽  
Cooling Rates ◽  
Glass Forming ◽  
Microstructure And Mechanical Properties

The aim of the present study is to shed some insights on the effect of cooling rate on the microstructure and mechanical properties for glass-forming alloys. A crystalline gradient was observed in the microstructure of 12 mm diameter Zr51Al9.96Ni14.34Cu24.9(Zr51) alloy sample from the edge to center due to uneven cooling rates. Microhardness results indicate that the lower the cooling rate, the higher the hardness for the studied alloy.

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