The Effect of Cryogenic Mechanical Alloying and Milling Duration on Powder Particles’ Microstructure of an Oxide Dispersion Strengthened FeCrMnNiCo High-Entropy Alloy

2021 ◽  
Author(s):  
Michael Mayer ◽  
Gerald Ressel ◽  
Jiri Svoboda
Keyword(s):  
Mechanical Alloying ◽  
Oxide Dispersion Strengthened ◽  
High Entropy Alloy ◽  
Oxide Dispersion ◽  
High Entropy ◽  
Milling Duration ◽  
Powder Particles

Compressive creep behavior of an oxide-dispersion-strengthened CoCrFeMnNi high-entropy alloy

2018 ◽  
Vol 732 ◽  
pp. 99-104 ◽  
Author(s):  
Ferdinand Dobeš ◽  
Hynek Hadraba ◽  
Zdeněk Chlup ◽  
Antonín Dlouhý ◽  
Monika Vilémová ◽  
...  
Keyword(s):  
Creep Behavior ◽  
Oxide Dispersion Strengthened ◽  
High Entropy Alloy ◽  
Oxide Dispersion ◽  
Compressive Creep ◽  
High Entropy

Oxide dispersion strengthened CoCrFeNiMn high-entropy alloy

2017 ◽  
Vol 689 ◽  
pp. 252-256 ◽  
Author(s):  
Hynek Hadraba ◽  
Zdenek Chlup ◽  
Antonin Dlouhy ◽  
Ferdinand Dobes ◽  
Pavla Roupcova ◽  
...  
Keyword(s):  
Oxide Dispersion Strengthened ◽  
High Entropy Alloy ◽  
Oxide Dispersion ◽  
High Entropy

scholarly journals Influence of V and Heat Treatment on Characteristics of WMoNbTaV Refractory High-Entropy Alloy Coatings by Mechanical Alloying

Coatings ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 265
Author(s):  
Chun-Liang Chen ◽  
Sutrisna
Keyword(s):  
Heat Treatment ◽  
Mechanical Alloying ◽  
Annealing Treatment ◽  
High Energy ◽  
304 Stainless Steel ◽  
Homogeneous Distribution ◽  
High Entropy Alloy ◽  
Solid Solution Phase ◽  
High Entropy ◽  
Steel Substrates

Refractory high-entropy alloy (RHEA) is one of the most promising materials for use in high-temperature structural materials. In this study, the WMoNbTaV coatings on 304 stainless steel substrates has been prepared by mechanical alloying (MA). Effects of V addition and subsequent heat treatment on properties of the WMoNbTaV coatings were investigated. The results show that the RHEA coatings with nanocrystalline body-centered cubic (BCC) solid-solution phase were generated by the mechanical alloying process. The presence of the V element promotes a uniform microstructure and homogeneous distribution of composition in the RHEA coatings due to improving alloying efficiency, resulting in an increase of hardness. After the annealing treatment of the RHEA coatings, microstructure homogeneity was further enhanced; however, the high affinity of Ta for oxygen causes the formation of Ta-rich oxides. Annealing also removes strain hardening generated by high-energy ball milling and thus decreases the hardness of the RHEA coating and alters microstructure evolution and mechanical properties.

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