Sintering mechanisms of mechanically alloyed CoCrFeNi high-entropy alloy powders

2018 ◽  
Vol 33 (19) ◽  
pp. 3321-3329 ◽  
Author(s):  
Rahul B. Mane ◽  
Bharat B. Panigrahi
Keyword(s):  
High Entropy Alloy ◽  
Mechanically Alloyed ◽  
High Entropy ◽  
Sintering Mechanisms ◽  
Image Position

Abstract

Alloying behavior and thermal stability of mechanically alloyed nano AlCoCrFeNiTi high-entropy alloy

2019 ◽  
Vol 34 (5) ◽  
pp. 787-795 ◽  
Author(s):  
Vikas Shivam ◽  
Yagnesh Shadangi ◽  
Joysurya Basu ◽  
Nilay Krishna Mukhopadhyay
Keyword(s):  
Thermal Stability ◽  
High Entropy Alloy ◽  
Mechanically Alloyed ◽  
High Entropy ◽  
Image Position ◽  
Thermal Stability Of

Abstract

Alloying behavior and thermal stability of mechanically alloyed nano AlCoCrFeNiTi high-entropy alloy—CORRIGENDUM

2019 ◽  
Vol 35 (2) ◽  
pp. 215-215
Author(s):  
Vikas Shivam ◽  
Yagnesh Shadangi ◽  
Joysurya Basu ◽  
Nilay Krishna Mukhopadhyay
Keyword(s):  
Thermal Stability ◽  
High Entropy Alloy ◽  
Mechanically Alloyed ◽  
High Entropy ◽  
Thermal Stability Of

scholarly journals Insights into the deformation behavior of the CrMnFeCoNi high-entropy alloy revealed by elevated temperature nanoindentation

2017 ◽  
Vol 32 (14) ◽  
pp. 2658-2667 ◽  
Author(s):  
Verena Maier-Kiener ◽  
Benjamin Schuh ◽  
Easo P. George ◽  
Helmut Clemens ◽  
Anton Hohenwarter
Keyword(s):  
Elevated Temperature ◽  
Deformation Behavior ◽  
High Entropy Alloy ◽  
High Entropy ◽  
Image Position

Abstract

The effect of SiC nanoparticles addition on the electrochemical response of mechanically alloyed CoCrFeMnNi high entropy alloy

2018 ◽  
Vol 215 ◽  
pp. 385-392 ◽  
Author(s):  
Zbigniew Szklarz ◽  
Janusz Lekki ◽  
Piotr Bobrowski ◽  
Magdalena Bisztyga Szklarz ◽  
Łukasz Rogal
Keyword(s):  
High Entropy Alloy ◽  
Mechanically Alloyed ◽  
Sic Nanoparticles ◽  
High Entropy ◽  
Electrochemical Response

scholarly journals Application of Hydride Process in Achieving Equimolar TiNbZrHfTa BCC Refractory High Entropy Alloy

Crystals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1020 ◽  
Author(s):  
Bhupendra Sharma ◽  
Kentaro Nagano ◽  
Kuldeep Kumar Saxena ◽  
Hiroshi Fujiwara ◽  
Kei Ameyama
Keyword(s):  
Titanium Hydride ◽  
Single Phase ◽  
Strengthening Mechanism ◽  
High Entropy Alloy ◽  
Mechanically Alloyed ◽  
High Entropy ◽  
Plasma Sintering ◽  
Bcc Structure ◽  
Spark Plasma ◽  
Tih2 Powder

For the first time, an equiatomic refractory high entropy alloy (RHEA) TiNbZrHfTa compact with a single-phase body-centered cubic (BCC) structure was fabricated via a titanium hydride (TiH2) assisted powder metallurgy approach. The constituent pure Ti, Zr, Nb, Hf, and Ta powders were mechanically alloyed (MA) with titanium hydride (TiH2) powder. The resultant MA powder was dehydrogenated at 1073 K for 3.6 ks and subsequently sintered through spark plasma sintering (SPS). Additionally, TiNbZrHfTa counterparts were prepared from pure elements without MA with TiH2. It was observed that the compact prepared from pure powders had a chemically heterogeneous microstructure with hexagonal close packed (HCP) and dual BCC phases. On the other hand, despite containing many constituents, the compact fabricated at 1473 K for 3.6 ks via the hydride approach had a single-phase BCC structure. The Vickers microhardness of the TiNbZrHfTa alloy prepared via the hydride process was Hv 520 (±30). The exceptional microhardness of the alloy is greater than any individual constituent, suggesting the operation of a simple solid-solution-like strengthening mechanism and/or precipitation hardening. In addition, the heat treatments were also carried out to analyze the phase stability of TiNbZrHfTa prepared via the hydride process. The results highlight the substantial changes in the phase as a function of temperature and/or time.

Nanomechanical behavior and structural stability of a nanocrystalline CoCrFeNiMn high-entropy alloy processed by high-pressure torsion

2015 ◽  
Vol 30 (18) ◽  
pp. 2804-2815 ◽  
Author(s):  
Dong-Hyun Lee ◽  
In-Chul Choi ◽  
Moo-Young Seok ◽  
Junyang He ◽  
Zhaoping Lu ◽  
...  
Keyword(s):  
High Pressure ◽  
Structural Stability ◽  
High Pressure Torsion ◽  
High Entropy Alloy ◽  
High Entropy ◽  
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Abstract

scholarly journals On single-phase status and segregation of an as-solidified septenary refractory high entropy alloy

2017 ◽  
Vol 7 (1) ◽  
pp. 78-83 ◽  
Author(s):  
Boliang Zhang ◽  
Yang Mu ◽  
M.C. Gao ◽  
W.J. Meng ◽  
S.M. Guo
Keyword(s):  
Single Phase ◽  
High Entropy Alloy ◽  
High Entropy ◽  
Image Position

Abstract

Hexagonal close-packed high-entropy alloy formation under extreme processing conditions

2019 ◽  
Vol 34 (5) ◽  
pp. 709-719 ◽  
Author(s):  
Ram Devanathan ◽  
Weilin Jiang ◽  
Karen Kruska ◽  
Michele A. Conroy ◽  
Timothy C. Droubay ◽  
...  
Keyword(s):  
High Entropy Alloy ◽  
Alloy Formation ◽  
Processing Conditions ◽  
High Entropy ◽  
Hexagonal Close Packed ◽  
Image Position

Abstract

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