Serrated flow stress and nano-precipitation in (CoCrFeNi)94Ti2Al4 high entropy alloy

2022 ◽  
Vol 141 ◽  
pp. 107429
Author(s):  
Gang Liu ◽  
Cao Wang ◽  
Zhenhua Han ◽  
Xinlei Miao ◽  
Xinwang Liu ◽  
...  
Keyword(s):  
Flow Stress ◽  
High Entropy Alloy ◽  
Serrated Flow ◽  
High Entropy

Short-range ordering induced serrated flow in a carbon contained FeCoCrNiMn high entropy alloy

Micron ◽  
2019 ◽  
Vol 126 ◽  
pp. 102739 ◽  
Author(s):  
Lin Guo ◽  
Ji Gu ◽  
Xing Gong ◽  
Kai Li ◽  
Song Ni ◽  
...  
Keyword(s):  
Short Range ◽  
High Entropy Alloy ◽  
Serrated Flow ◽  
High Entropy ◽  
Short Range Ordering

scholarly journals Mechanical Properties and Microstructure of a NiCrFeCoMn High-Entropy Alloy Deformed at High Strain Rates

Entropy ◽  
2018 ◽  
Vol 20 (11) ◽  
pp. 892 ◽  
Author(s):  
Bingfeng Wang ◽  
Xianrui Yao ◽  
Chu Wang ◽  
Xiaoyong Zhang ◽  
Xiaoxia Huang
Keyword(s):  
Mechanical Properties ◽  
Flow Stress ◽  
High Strain ◽  
High Entropy Alloy ◽  
Crystallographic Structure ◽  
Strain Rates ◽  
Deformation Bands ◽  
High Strain Rates ◽  
High Entropy ◽  
Arc Melting

The equiatomic NiCrFeCoMn high-entropy alloy prepared by arc melting has a single crystallographic structure. Mechanical properties and microstructure of the NiCrFeCoMn high-entropy alloy deformed at high strain rates (900 s−1 to 4600 s−1) were investigated. The yield strength of the NiCrFeCoMn high-entropy alloy is sensitive to the change of high strain rates. Serration behaviors were also observed on the flow stress curves of the alloy deformed at the strain rates ranging from 900 s−1 to 4600 s−1. The Zerilli–Armstrong constitutive equation can be used to predict the flow stress curves of the NiCrFeCoMn high-entropy alloy. Large amounts of deformation bands led to obvious serration behaviors of the NiCrFeCoMn high-entropy alloy under dynamic loading.

Instant and Persistent Hydrogen Production Using Nano High Entropy Catalyst

2019 ◽  
Author(s):  
Nirmal Kumar ◽  
Subramanian Nellaiappan ◽  
Ritesh Kumar ◽  
Kirtiman Deo Malviya ◽  
K. G. Pradeep ◽  
...  
Keyword(s):  
Formic Acid ◽  
Minimum Energy ◽  
High Entropy Alloy ◽  
Hydrogen Energy ◽  
High Entropy ◽  
Electro Oxidation ◽  
The Individual ◽  
Novel Catalyst ◽  
Cell Anode ◽  
Fuel Cell Anode

<div>Renewable harvesting clean and hydrogen energy using the benefits of novel multicatalytic materials of high entropy alloy (HEA equimolar Cu-Ag-Au-Pt-Pd) from formic acid with minimum energy input has been achieved in the present investigation. The synthesis effect of pristine elements in the HEA drives the electro-oxidation reaction towards non-carbonaceous pathway . The atomistic simulation based on DFT rationalize the distinct lowering of the d-band center for the individual atoms in the HEA as compared to the pristine counterparts. This catalytic activity of the HEA has also been extended to methanol electro-oxidation to show the unique capability of the novel catalyst. The nanostructured HEA, properties using a combination of casting and cry omilling techniques can further be utilized as fuel cell anode in direct formic acid/methanol fuel cells (DFFE).<br></div>

Complex magnetism and magnetoresistance of Gd-Tb-Dy-Ho-Lu hexagonal high-entropy alloy

2018 ◽  
Author(s):  
Janez Dolinšek ◽  
Stanislav Vrtnik ◽  
J. Lužnik ◽  
P. Koželj ◽  
M. Feuerbacher
Keyword(s):  
High Entropy Alloy ◽  
High Entropy

Recent progress in multi-element alloy and nitride coatings sputtered from high-entropy alloy targets

2006 ◽  
Vol 31 (6) ◽  
pp. 723-736 ◽  
Author(s):  
Keng-Hao Cheng ◽  
Chia-Han Lai ◽  
Su-Jien Lin ◽  
Jien-Wei Yeh
Keyword(s):  
Recent Progress ◽  
High Entropy Alloy ◽  
High Entropy ◽  
Nitride Coatings
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