Thermal Stability, Glass-Formation Ability, and Mechanical Properties of (Zr41.2Ti13.8Cu12.5Ni10Be22.5)100−x Nb x Amorphous Alloys

2007 ◽  
Vol 39 (8) ◽  
pp. 1812-1816 ◽  
Author(s):  
F. Jiang ◽  
G. Chen ◽  
W.L. Li ◽  
Z.H. Wang ◽  
G.L. Chen
2020 ◽  
Vol 12 (3) ◽  
pp. 03026-1-03026-4
Author(s):  
T. L. Tsaregradskaya ◽  
◽  
A. M. Kuryliuk ◽  
I. V. Ovsiienko ◽  
G. V. Saenko ◽  
...  

2005 ◽  
Vol 486-487 ◽  
pp. 497-500 ◽  
Author(s):  
S. Jayalakshmi ◽  
Eric Fleury ◽  
Yu Chan Kim ◽  
Ki Bae Kim

Zr50Ni27Nb18Co5 amorphous ribbons were hydrogenated using an electrochemical method. Under a current density of 30 mA/cm2, the thermal stability of the amorphous phase was found to increase with the charging time. Hardness and fracture strength were found to be independent of charging time, indicating that the Zr-Ni-Nb-Co amorphous alloys preserved its mechanical integrity.


2015 ◽  
Vol 17 (9) ◽  
pp. 6511-6522 ◽  
Author(s):  
Shifang Xiao ◽  
Xiaofan Li ◽  
Huiqiu Deng ◽  
Lei Deng ◽  
Wangyu Hu

The Fe-centred ICO cluster network near the surface effectively promotes the glass formation ability of Fe–Al nanoalloy.


2011 ◽  
Vol 688 ◽  
pp. 407-412
Author(s):  
Li Jie Yue ◽  
Jin Sheng Han ◽  
Kun Xie

The glassy alloy rods of Cu50Zr43Al7, (Cu50Zr43Al7)100-xYx(x=2,5) and (Cu50Zr43Al7)100-xAgx(x=6,7) with diameters of 3.0 mm were prepared by copper mold suction casting method. The influence of adding Ag and Y to Cu50Zr43Al7 metallic glass on glass formation ability (GFA) and thermal stability was studied by means of X-ray diffraction analysis (XRD) and differential scanning calorimetry (DSC). The results show that Ag and Y appropriate micro-addition enhance the glass formation ability and thermal stability of the Cu-Zr-Al metallic glass. The effect of Ag is better than that of Y. The addition of Ag causes a increase of the reduced glass transition temperature (Trg) of (Cu50Zr43Al7)100-xAgx alloy from 0.618 at 0 at.% Ag to 0.628 at 7 at.% Ag. The width of the supercooled liquid region of Cu43Zr43Al7Ag7 glassy alloy increases about 25K compared with that of Cu50Zr43Al7, and the γ value of Cu43Zr43Al7Ag7 reaches 0.433. The electrochemical corrosion behaviors of Cu50Zr43Al7, (Cu50Zr43Al7)100-xYx(x=2,5) and (Cu50Zr43Al7)100-xAgx(x=6,7) metallic glasses in 3.5% NaCl solution were investigated by potentiodynamic polarization method. It is found that corrosion resistance of all amorphous alloys is better than that of the corresponding crystalline alloys. The Ag and Y micro-addition improve corrosion resistance of Cu50Zr43Al7 metallic glass. The corrosion current density of Cu43Zr43Al7Ag7 metallic glass decreases 1~2 orders of magnitude compared with that of Cu50Zr43Al7.


2012 ◽  
Vol 48 (1) ◽  
pp. 45-51 ◽  
Author(s):  
Y.Y. Sun ◽  
M. Song

This paper fabricated Fe76.5-xCu1Si13.5B9Alx (x=0,1,2,3,5,7 at.%) amorphous ribbons using singleroller melt-spinning method. The effect of Al content on the thermal stability and mechanical properties was investigated. The results indicated that Al addition have little effect on the amorphous formation ability of the alloys. On the other hand, increasing the Al content can substantially increase Tx2, which corresponds to the crystallization of Fe borides. Nanoindentation tests indicated that hardness of the alloys increase slightly with increasing the Al content, and Young?s modulus has a complicated relationship with the Al content.


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