Medium-range ordering, structural heterogeneity, and their influence on properties of Zr-Cu-Co-Al metallic glasses

2021 ◽  
Vol 5 (11) ◽  
Author(s):  
Soohyun Im ◽  
Yuchi Wang ◽  
Pengyang Zhao ◽  
Geun Hee Yoo ◽  
Zhen Chen ◽  
...  
Keyword(s):  
Metallic Glasses ◽  
Structural Heterogeneity ◽  
Medium Range

scholarly journals Investigation of the Structural Heterogeneity and Corrosion Performance of the Annealed Fe-Based Metallic Glasses

Materials ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 929
Author(s):  
Dandan Liang ◽  
Jo-Chi Tseng ◽  
Xiaodi Liu ◽  
Yuanfei Cai ◽  
Gang Xu ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Passive Film ◽  
Metallic Glasses ◽  
Function Analysis ◽  
Supercooled Liquid ◽  
Structural Heterogeneity ◽  
Coordination Shell ◽  
Supercooled Liquid Region ◽  
Liquid Region ◽  
Corrosion Performance

This study investigated the structural heterogeneity, mechanical property, electrochemical behavior, and passive film characteristics of Fe–Cr–Mo–W–C–B–Y metallic glasses (MGs), which were modified through annealing at different temperatures. Results showed that annealing MGs below the glass transition temperature enhanced corrosion resistance in HCl solution owing to a highly protective passive film formed, originating from the decreased free volume and the shrinkage of the first coordination shell, which was found by pair distribution function analysis. In contrast, the enlarged first coordination shell and nanoscale crystal-like clusters were identified for MGs annealed in the supercooled liquid region, which led to a destabilized passive film and thereby deteriorated corrosion resistance. This finding reveals the crucial role of structural heterogeneity in tuning the corrosion performance of MGs.

Atomic packing and short-to-medium-range order in metallic glasses

Nature ◽  
2006 ◽  
Vol 439 (7075) ◽  
pp. 419-425 ◽  
Author(s):  
H. W. Sheng ◽  
W. K. Luo ◽  
F. M. Alamgir ◽  
J. M. Bai ◽  
E. Ma
Keyword(s):  
Metallic Glasses ◽  
Range Order ◽  
Atomic Packing ◽  
Medium Range Order ◽  
Medium Range

scholarly journals Medium-range structure and glass forming ability in Zr–Cu–Al bulk metallic glasses

2016 ◽  
Vol 109 ◽  
pp. 103-114 ◽  
Author(s):  
Pei Zhang ◽  
Jason J. Maldonis ◽  
M.F. Besser ◽  
M.J. Kramer ◽  
Paul M. Voyles
Keyword(s):  
Metallic Glasses ◽  
Bulk Metallic Glasses ◽  
Glass Forming Ability ◽  
Glass Forming ◽  
Medium Range
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