How can a minor element added to a binary amorphous alloy simultaneously improve the plasticity and glass-forming ability?

2013 ◽  
Vol 61 (17) ◽  
pp. 6597-6608 ◽  
Author(s):  
Hong-Kyu Kim ◽  
Mirim Lee ◽  
Kwang-Ryeol Lee ◽  
Jae-Chul Lee
Materials ◽  
2019 ◽  
Vol 12 (3) ◽  
pp. 383 ◽  
Author(s):  
Xuan Liu ◽  
Xingfu Wang ◽  
Yongli Si ◽  
Xiaokang Zhong ◽  
Fusheng Han

In this study, the formation and crystallization of the Al70Fe12.5V12.5Nb5 amorphous alloys has been investigated. The addition of Nb enhances the supercooled liquid region and glass forming ability of the Al-Fe-V amorphous alloys. The Al70Fe12.5V12.5Nb5 amorphous alloy exhibits two distinct crystallization steps and a large supercooled liquid region at more than 100 K. Kissinger and Ozawa analyses showed that the two activation energies for crystallization (Ex) were estimated to be 366.3 ± 23.9 and 380.5 ± 23.9 kJ/mol. Large supercooled liquid regions are expected to gain an application field of Al-based amorphous alloys.


2010 ◽  
Vol 26 (2) ◽  
pp. 146-150 ◽  
Author(s):  
Guihua Li ◽  
Weimin Wang ◽  
Xiufang Bian ◽  
Li Wang ◽  
Jiteng Zhang ◽  
...  

2012 ◽  
Vol 112 (7) ◽  
pp. 073520 ◽  
Author(s):  
H. Wang ◽  
T. Hu ◽  
J. Y. Qin ◽  
T. Zhang

2021 ◽  
Author(s):  
Hai-Po Cui ◽  
Wei-Dong Zhang ◽  
Cheng-Li Song

Abstract In this work, (Zr55Cu30Al10Ni5)100−xScx (x = 0, 0.5, 1.0, and 1.5) amorphous alloys were fabricated through steel die casting. The effects of scandium on the properties of zirconium-based amorphous alloys have been studied. The results show that the glass-forming ability of amorphous alloys increases at first and then decreases with the increase of Sc content. The highest glass-forming ability is obtained when the atomic fraction of Sc is 0.5%, which enables the production of 2-mm-thick amorphous alloy ingots. Meanwhile, the thermal stability and mechanical properties of the alloy are optimised with the atomic fraction of Sc of 1.0%. In addition, by adding an appropriate amount of Sc, the corrosion resistance of Zr–Cu–Al–Ni alloys is enhanced, particularly in the acid solution. The lowest average corrosion rate for samples in acid solution is obtained with the alloy containing atomic fraction of Sc of 1.0%. Therefore, results of this study indicate that the Zr-based amorphous alloy containing scandium has the potential for manufacturing fracture internal fixation or surgical devices.


2015 ◽  
Vol 30 (6) ◽  
pp. 818-824 ◽  
Author(s):  
Hyo Yun Jung ◽  
Mihai Stoica ◽  
Seong Hoon Yi ◽  
Do Hyang Kim ◽  
Jürgen Eckert

Abstract


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