Noncontact measurement of crystallization behavior, specific volume, and viscosity of bulk glass-forming Zr-Al-Co-(Cu) alloys

2004 ◽  
Vol 70 (17) ◽  
Author(s):  
S. Mukherjee ◽  
H.-G. Kang ◽  
W. L. Johnson ◽  
W.-K. Rhim
2012 ◽  
Vol 358 (2) ◽  
pp. 145-149 ◽  
Author(s):  
D.V. Louzguine-Luzgin ◽  
G.Q. Xie ◽  
S. Gonzales ◽  
J.Q. Wang ◽  
K. Nakayama ◽  
...  

2009 ◽  
Vol 41 (7) ◽  
pp. 1664-1669 ◽  
Author(s):  
D.V. Louzguine-Luzgin ◽  
G. Xie ◽  
Q. Zhang ◽  
C. Suryanarayana ◽  
A. Inoue

1998 ◽  
Vol 269-272 ◽  
pp. 541-546 ◽  
Author(s):  
Gerhard Wilde ◽  
G.P. Görler ◽  
K. Jeropoulos ◽  
R. Willnecker ◽  
Hans Jorg Fecht

2000 ◽  
Vol 644 ◽  
Author(s):  
Y. Li

AbstractOnset temperature, Tm and offset temperature (liquidus) Tl of melting of a series of bulk glass forming alloys based on La, Mg, and Pd have been measured by studying systematically the melting behaviour of these alloys using DTA or DSC. Bulk metallic glass formation has been found to be most effective at or near their eutectic points and less effective for off-eutectic alloys. Reduced glass transition temperature Trg given by Tg/Tl is found to show a stronger correlation with critical cooling rate or critical section thickness for glass formation than Trg given by Tg/Tm.


2007 ◽  
Vol 22 (2) ◽  
pp. 471-477 ◽  
Author(s):  
Dong Ho Kim ◽  
Jin Man Park ◽  
Do Hyang Kim ◽  
Won Tae Kim

The effects of niobium (Nb) addition on the glass-forming ability (GFA), crystallization behavior, and compressive mechanical property of iron (Fe)–boron (B)–yttrium (Y) alloys have been investigated. Among the (Fe71.2B24Y4.8)100−xNbx (x = 0, 2, 4, 6, 8) alloys investigated, (Fe71.2B24Y4.8)96Nb4 exhibits the highest GFA, enabling the formation of glassy rods with a maximum diameter of 7 mm, which is the largest among quaternary Fe-based alloys. The comparison of the crystallization behavior of the alloys shows that the formation of metastable Fe23B6 phase during crystallization in the (Fe71.2B24Y4.8)96Nb4 alloy can suppress the formation of other stable crystalline phases such as α-Fe, enhancing the stability of the glass phase. The present results show that the attainment of a significantly high GFA is possible even in a quaternary Fe-based alloy system by properly tailoring the competing crystalline phase by the modification of liquid chemistry.


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