scholarly journals Short range order and stability of a mechanically alloyed Cr25Nb75 glass determined by total scattering and first principles

2014 ◽  
Vol 17 (6) ◽  
pp. 1677-1685 ◽  
Author(s):  
Georgios S.E. Antipas
2021 ◽  
Vol 118 (13) ◽  
pp. e2020540118
Author(s):  
Flynn Walsh ◽  
Mark Asta ◽  
Robert O. Ritchie

The presence, nature, and impact of chemical short-range order in the multi-principal element alloy CrCoNi are all topics of current interest and debate. First-principles calculations reveal that its origins are fundamentally magnetic, involving repulsion between like-spin Co–Cr and Cr–Cr pairs that is complemented by the formation of a magnetically aligned sublattice of second-nearest-neighbor Cr atoms. Ordering models following these principles are found to predict otherwise anomalous experimental measurements concerning both magnetization and atomic volumes across a range of compositions. In addition to demonstrating the impact of magnetic interactions and resulting chemical rearrangement, the possible explanation of experiments would imply that short-range order of this type is far more prevalent than previously realized.


1997 ◽  
Vol 248 (1-2) ◽  
pp. 52-58 ◽  
Author(s):  
Yuumi Kojima ◽  
Tetsuhiko Isobe ◽  
Mamoru Senna ◽  
Masaki Sakurai ◽  
Kenji Sumiyama ◽  
...  

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