scholarly journals Microstructural Evolution and Phase Formation in 2nd-Generation Refractory-Based High Entropy Alloys

Materials ◽  
2018 ◽  
Vol 11 (2) ◽  
pp. 175 ◽  
Author(s):  
Eyal Eshed ◽  
Natalya Larianovsky ◽  
Alexey Kovalevsky ◽  
Vladimir Popov Jr. ◽  
Igor Gorbachev ◽  
...  
Keyword(s):  
Phase Formation ◽  
Microstructural Evolution ◽  
High Entropy Alloys ◽  
High Entropy ◽  
2Nd Generation

A review on phase prediction in high entropy alloys

2021 ◽  
pp. 095440622110089
Author(s):  
Vinay Kumar Soni ◽  
S Sanyal ◽  
K Raja Rao ◽  
Sudip K Sinha
Keyword(s):  
Solid Solution ◽  
Phase Formation ◽  
Single Phase ◽  
High Entropy Alloy ◽  
High Entropy Alloys ◽  
Modeling Tools ◽  
High Entropy ◽  
Recent Developments ◽  
Phase Prediction ◽  
The Stability

The formation of single phase solid solution in High Entropy Alloys (HEAs) is essential for the properties of the alloys therefore, numerous approach were proposed by many researchers to predict the stability of single phase solid solution in High Entropy Alloy. The present review examines some of the recent developments while using computational intelligence techniques such as parametric approach, CALPHAD, Machine Learning etc. for prediction of various phase formation in multicomponent high entropy alloys. A detail study of this data-driven approaches pertaining to the understanding of structural and phase formation behaviour of a new class of compositionally complex alloys is done in the present investigation. The advantages and drawbacks of the various computational are also discussed. Finally, this review aims at understanding several computational modeling tools complying the thermodynamic criteria for phase formation of novel HEAs which could possibly deliver superior mechanical properties keeping an aim at advanced engineering applications.

Topologically Close-packed Phase Formation in High Entropy Alloys: A Review of Calphad and Experimental Results

JOM ◽  
2017 ◽  
Vol 69 (11) ◽  
pp. 2113-2124 ◽  
Author(s):  
K. Guruvidyathri ◽  
K. C. Hari Kumar ◽  
J. W. Yeh ◽  
B. S. Murty
Keyword(s):  
Phase Formation ◽  
Experimental Results ◽  
High Entropy Alloys ◽  
High Entropy ◽  
Topologically Close Packed

Big-data analysis of phase-formation rules in high-entropy alloys

2017 ◽  
Vol 24 (4) ◽  
pp. 358-365 ◽  
Author(s):  
Wan-li Zhao ◽  
Ding-hao Miao ◽  
Yong Zhang ◽  
Zhan-bing He
Keyword(s):  
Big Data ◽  
Data Analysis ◽  
Phase Formation ◽  
Big Data Analysis ◽  
High Entropy Alloys ◽  
High Entropy

scholarly journals A Criterion for Topological Close-Packed Phase Formation in High Entropy Alloys

Entropy ◽  
2015 ◽  
Vol 17 (4) ◽  
pp. 2355-2366 ◽  
Author(s):  
Yiping Lu ◽  
Yong Dong ◽  
Li Jiang ◽  
Tongmin Wang ◽  
Tingju Li ◽  
...  
Keyword(s):  
Phase Formation ◽  
High Entropy Alloys ◽  
High Entropy

scholarly journals Effects of La on Thermal Stability, Phase Formation and Magnetic Properties of Fe–Co–Ni–Si–B–La High Entropy Alloys

Metals ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1907
Author(s):  
Jiaming Li ◽  
Jianliang Zuo ◽  
Hongya Yu
Keyword(s):  
Thermal Stability ◽  
Magnetic Properties ◽  
Saturation Magnetization ◽  
Phase Formation ◽  
Crystallization Temperature ◽  
High Entropy Alloys ◽  
Soft Magnetic Properties ◽  
Soft Magnetic ◽  
High Entropy ◽  
Bcc Phase

The microstructure, phase formation, thermal stability and soft magnetic properties of melt-spun high entropy alloys (HEAs) Fe27Co27Ni27Si10−xB9Lax with various La substitutions for Si (x = 0, 0.2, 0.4, 0.6, 0.8, and 1) were investigated in this work. The Fe27Co27Ni27Si10−xB9La0.6 alloy shows superior soft magnetic properties with low coercivity Hc of ~7.1 A/m and high saturation magnetization Bs of 1.07 T. The content of La has an important effect on the primary crystallization temperature (Tx1) and the secondary crystallization temperature (Tx2) of the alloys. After annealing at relatively low temperature, the saturation magnetization of the alloy increases and the microstructure with a small amount of body-centered cubic (BCC) phase embedded in amorphous matrix is observed. Increasing the annealing temperature reduces the magnetization due to the transformation of BCC phase into face-centered cubic (FCC) phase.

On the controllability of phase formation in rapid solidification of high entropy alloys

2018 ◽  
Vol 748 ◽  
pp. 679-686 ◽  
Author(s):  
Mehdi Jafary-Zadeh ◽  
Zachary H. Aitken ◽  
Rouhollah Tavakoli ◽  
Yong-Wei Zhang
Keyword(s):  
Rapid Solidification ◽  
Phase Formation ◽  
High Entropy Alloys ◽  
High Entropy

Microstructural Evolution in MgAlLiZnCaY and MgAlLiZnCaCu Multicomponent High Entropy Alloys

2018 ◽  
Vol 928 ◽  
pp. 183-187 ◽  
Author(s):  
Khin Sandar Tun ◽  
Manoj Gupta
Keyword(s):  
Microstructural Evolution ◽  
Microstructural Development ◽  
High Entropy Alloy ◽  
High Entropy Alloys ◽  
Light Weight ◽  
Aluminum Casting ◽  
High Entropy ◽  
Characterization Studies ◽  
Melt Deposition ◽  
Constituent Elements

In this research study, two light weight multi-component high entropy alloys (HEAs) consisting of six constituent elements were synthesized. The high entropy alloy having a chemical composition of Mg35Al33Li15Zn7Ca5Y5(atomic pct.) had a density of 2.25 g/cm3, while the high entropy alloy having a composition of Mg35Al33Li15Zn7Ca5Cu5(atomic pct.) had a density of 2.27 g/cm3. The strategy of non-equiatomic composition, high entropy of mixing coupled with low density was applied in designing the alloy systems. Disintegrated melt deposition (DMD) technique was used to synthesize the materials and characterization studies were performed on as-cast materials. The present study emphasizes on examining and understanding the microstructural development in the two light weight high entropy alloys. The formation and presence of phases and microstructural evolution were studied by interchanging yttrium and copper. Microstructural observations revealed presence of multiple phases in the developed alloys and the simplification of the microstructure when copper is used instead of yttrium. Microhardness results revealed a significant increase in hardness of of both the HEAs (3.8 – 4.2 times) when compared to AZ31 commercial magnesium alloy.Keywords: High Entropy Alloy, Magnesium, Aluminum, Casting, Microstructure

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