scholarly journals Combinatorial evaluation of phase formation and magnetic properties of FeMnCoCrAl high entropy alloy thin film library

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
A. Marshal ◽  
K. G. Pradeep ◽  
D. Music ◽  
L. Wang ◽  
O. Petracic ◽  
...  
Keyword(s):  
Thin Film ◽  
Magnetic Properties ◽  
Phase Formation ◽  
High Entropy Alloy ◽  
Alloy Thin Film ◽  
Film Library ◽  
High Entropy

scholarly journals High Strength and Deformation Mechanisms of Al0.3CoCrFeNi High-Entropy Alloy Thin Films Fabricated by Magnetron Sputtering

Entropy ◽  
2019 ◽  
Vol 21 (2) ◽  
pp. 146 ◽  
Author(s):  
Wei-Bing Liao ◽  
Hongti Zhang ◽  
Zhi-Yuan Liu ◽  
Pei-Feng Li ◽  
Jian-Jun Huang ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Magnetron Sputtering ◽  
High Hardness ◽  
Deformation Mechanisms ◽  
High Entropy Alloy ◽  
Alloy Thin Film ◽  
Face Centered Cubic ◽  
High Entropy ◽  
Strength And Deformation

Recently, high-entropy alloy thin films (HEATFs) with nanocrystalline structures and high hardness were developed by magnetron sputtering technique and have exciting potential to make small structure devices and precision instruments with sizes ranging from nanometers to micrometers. However, the strength and deformation mechanisms are still unclear. In this work, nanocrystalline Al0.3CoCrFeNi HEATFs with a thickness of ~4 μm were prepared. The microstructures of the thin films were comprehensively characterized, and the mechanical properties were systematically studied. It was found that the thin film was smooth, with a roughness of less than 5 nm. The chemical composition of the high entropy alloy thin film was homogeneous with a main single face-centered cubic (FCC) structure. Furthermore, it was observed that the hardness and the yield strength of the high-entropy alloy thin film was about three times that of the bulk samples, and the plastic deformation was inhomogeneous. Our results could provide an in-depth understanding of the mechanics and deformation mechanism for future design of nanocrystalline HEATFs with desired properties.

scholarly journals Molecular dynamics simulation of Al–Co–Cr–Cu–Fe–Ni high entropy alloy thin film growth

2016 ◽  
Vol 68 ◽  
pp. 78-86 ◽  
Author(s):  
Lu Xie ◽  
Pascal Brault ◽  
Anne-Lise Thomann ◽  
Xiao Yang ◽  
Yong Zhang ◽  
...  
Keyword(s):  
Thin Film ◽  
Molecular Dynamics ◽  
Molecular Dynamics Simulation ◽  
Film Growth ◽  
Thin Film Growth ◽  
Dynamics Simulation ◽  
High Entropy Alloy ◽  
Alloy Thin Film ◽  
High Entropy

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.

Microstructure and magnetic properties of SiO2/FeCoNiSi0.25 high-entropy alloy with a core/shell structure

2021 ◽  
Vol 290 ◽  
pp. 129399
Author(s):  
Shaofeng Yang ◽  
Jianan Wen ◽  
Fangyang Zhang ◽  
Jingyi Xie ◽  
Jiao Mo ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Shell Structure ◽  
High Entropy Alloy ◽  
Core Shell ◽  
High Entropy ◽  
Core Shell Structure ◽  
Microstructure And Magnetic Properties

scholarly journals Influence of Titanium on Microstructure, Phase Formation and Wear Behaviour of AlCoCrFeNiTix High-Entropy Alloy

Entropy ◽  
2018 ◽  
Vol 20 (7) ◽  
pp. 505 ◽  
Author(s):  
Martin Löbel ◽  
Thomas Lindner ◽  
Thomas Mehner ◽  
Thomas Lampke
Keyword(s):  
Phase Formation ◽  
Wear Behaviour ◽  
High Entropy Alloy ◽  
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.

Sign in / Sign up

Export Citation Format

Share Document