scholarly journals Oxidation behavior of gas-atomized AlCoCrFeNi high-entropy alloy powder at 900－1100 °C

2021 ◽  
Vol 181 ◽  
pp. 109257
Author(s):  
Jie Lu ◽  
Ling Li ◽  
Han Zhang ◽  
Ying Chen ◽  
Lirong Luo ◽  
...  
Keyword(s):  
Alloy Powder ◽  
Oxidation Behavior ◽  
High Entropy Alloy ◽  
High Entropy

High temperature oxidation behavior of Cr-Mn-Fe-Co-Ni high entropy alloy

2018 ◽  
Vol 98 ◽  
pp. 45-53 ◽  
Author(s):  
Young-Kyun Kim ◽  
Yeun-Ah Joo ◽  
Hyoung Seop Kim ◽  
Kee-Ahn Lee
Keyword(s):  
High Temperature ◽  
High Temperature Oxidation ◽  
Oxidation Behavior ◽  
High Entropy Alloy ◽  
Temperature Oxidation ◽  
High Entropy ◽  
High Temperature Oxidation Behavior

Preparation of TiZrNbTa refractory high-entropy alloy powder by mechanical alloying with liquid process control agents

2020 ◽  
Vol 126 ◽  
pp. 106900 ◽  
Author(s):  
Yating Qiao ◽  
Yu Tang ◽  
Shun Li ◽  
Yicong Ye ◽  
Xiyue Liu ◽  
...  
Keyword(s):  
Process Control ◽  
Mechanical Alloying ◽  
Alloy Powder ◽  
High Entropy Alloy ◽  
High Entropy ◽  
Liquid Process

scholarly journals Alloying effect on the oxidation behavior of a ductile Al0.5Cr0.25Nb0.5Ta0.5Ti1.5 refractory high-entropy alloy

2020 ◽  
Vol 7 ◽  
pp. 100104
Author(s):  
S. Sheikh ◽  
L. Gan ◽  
A. Ikeda ◽  
H. Murakami ◽  
S. Guo
Keyword(s):  
Oxidation Behavior ◽  
High Entropy Alloy ◽  
Alloying Effect ◽  
High Entropy

Microstructure of Al1.3CrFeNi eutectic high entropy alloy and oxidation behavior at 1000 °C

2017 ◽  
Vol 32 (11) ◽  
pp. 2109-2116 ◽  
Author(s):  
Xiao Chen ◽  
Yanwei Sui ◽  
Jiqiu Qi ◽  
Yezeng He ◽  
Fuxiang Wei ◽  
...  
Keyword(s):  
Oxidation Behavior ◽  
High Entropy Alloy ◽  
High Entropy ◽  
Image Position

Abstract

Microstructure, mechanical and thermal oxidation behavior of AlNbTiZr high entropy alloy

2018 ◽  
Vol 100 ◽  
pp. 9-19 ◽  
Author(s):  
J. Jayaraj ◽  
Pramote Thirathipviwat ◽  
Junhee Han ◽  
Annett Gebert
Keyword(s):  
Thermal Oxidation ◽  
Oxidation Behavior ◽  
High Entropy Alloy ◽  
High Entropy

scholarly journals Oxidation Behavior of Refractory AlNbTiVZr0.25 High-Entropy Alloy

Materials ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 2526 ◽  
Author(s):  
Nikita Yurchenko ◽  
Evgeniya Panina ◽  
Sergey Zherebtsov ◽  
Gennady Salishchev ◽  
Nikita Stepanov
Keyword(s):  
Oxidation Kinetics ◽  
Oxidation Behavior ◽  
High Entropy Alloy ◽  
X Ray Diffraction ◽  
Breakaway Oxidation ◽  
High Entropy ◽  
Second Stage ◽  
Entire Duration ◽  
Different Temperatures ◽  
Oxidation Mechanisms

Oxidation behavior of a refractory AlNbTiVZr0.25 high-entropy alloy at 600–900 °C was investigated. At 600–700 °C, two-stage oxidation kinetics was found: Nearly parabolic oxidation (n = 0.46–0.48) at the first stage, transitioned to breakaway oxidation (n = 0.75–0.72) at the second stage. At 800 °C, the oxidation kinetics was nearly linear (n = 0.92) throughout the entire duration of testing. At 900 °C, the specimen disintegrated after 50 h of testing. The specific mass gains were estimated to be 7.2, 38.1, and 107.5, and 225.5 mg/cm2 at 600, 700, and 800 °C for 100 h, and 900 °C for 50 h, respectively. Phase compositions and morphology of the oxide scales were analyzed using X-ray diffraction (XRD) and scanning electron microscopy (SEM). It was shown that the surface layer at 600 °C consisted of the V2O5, VO2, TiO2, Nb2O5, and TiNb2O7 oxides. Meanwhile, the scale at 900 °C comprised of complex TiNb2O7, AlNbO4, and Nb2Zr6O17 oxides. The oxidation mechanisms operating at different temperatures were discussed and a comparison of oxidation characteristics with the other alloys was conducted.

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