In Situ Electrochemical-AFM Study of Local Dissolution Processes of Al x Co Cr Fe Ni High-Entropy Alloys

2017 ◽  
Keyword(s):  
High Entropy Alloys ◽  
High Entropy ◽  
Local Dissolution

scholarly journals Thermal Stability of High Entropy Alloys during in Situ TEM Heating.

2018 ◽  
Vol 24 (S1) ◽  
pp. 1928-1929 ◽  
Author(s):  
Elaf A. Anber ◽  
Andrew C Lang ◽  
Eric A. Lass ◽  
Pranav Kumar Suri ◽  
Daniel Scotto D'Antuono ◽  
...  
Keyword(s):  
Thermal Stability ◽  
In Situ Tem ◽  
High Entropy Alloys ◽  
High Entropy ◽  
Thermal Stability Of

In-situ high throughput synthesis of high-entropy alloys

2019 ◽  
Vol 160 ◽  
pp. 44-47 ◽  
Author(s):  
Yuqing Xu ◽  
Yeqiang Bu ◽  
Jiabin Liu ◽  
Hongtao Wang
Keyword(s):  
High Throughput ◽  
High Entropy Alloys ◽  
High Entropy

scholarly journals In-situ visualization of corrosion behavior of Al CoCrFeNi high-entropy alloys during electrochemical polarization

2020 ◽  
Vol 844 ◽  
pp. 156014 ◽  
Author(s):  
Yunzhu Shi ◽  
Jingke Mo ◽  
Feng-Yuan Zhang ◽  
Bin Yang ◽  
Peter K. Liaw ◽  
...  
Keyword(s):  
Corrosion Behavior ◽  
High Entropy Alloys ◽  
Electrochemical Polarization ◽  
High Entropy ◽  
In Situ Visualization

scholarly journals Strength can be controlled by edge dislocations in refractory high-entropy alloys

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Chanho Lee ◽  
Francesco Maresca ◽  
Rui Feng ◽  
Yi Chou ◽  
T. Ungar ◽  
...  
Keyword(s):  
High Strength ◽  
Recent Theory ◽  
High Entropy Alloys ◽  
High Entropy ◽  
Refractory Elements ◽  
Transmission Electron ◽  
In Situ Neutron Diffraction ◽  
Edge Dislocations ◽  
Strength Retention

AbstractEnergy efficiency is motivating the search for new high-temperature (high-T) metals. Some new body-centered-cubic (BCC) random multicomponent “high-entropy alloys (HEAs)” based on refractory elements (Cr-Mo-Nb-Ta-V-W-Hf-Ti-Zr) possess exceptional strengths at high temperatures but the physical origins of this outstanding behavior are not known. Here we show, using integrated in-situ neutron-diffraction (ND), high-resolution transmission electron microscopy (HRTEM), and recent theory, that the high strength and strength retention of a NbTaTiV alloy and a high-strength/low-density CrMoNbV alloy are attributable to edge dislocations. This finding is surprising because plastic flows in BCC elemental metals and dilute alloys are generally controlled by screw dislocations. We use the insight and theory to perform a computationally-guided search over 107 BCC HEAs and identify over 106 possible ultra-strong high-T alloy compositions for future exploration.

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