The use of diffusion multiples to examine the compositional dependence of phase stability and hardness of the Co-Cr-Fe-Mn-Ni high entropy alloy system

2016 ◽  
Vol 75 ◽  
pp. 15-24 ◽  
Author(s):  
Paul Wilson ◽  
Robert Field ◽  
Michael Kaufman
Keyword(s):  
Phase Stability ◽  
Alloy System ◽  
High Entropy Alloy ◽  
Compositional Dependence ◽  
High Entropy ◽  
Diffusion Multiples

Phase Stability and Mechanical Properties of FCC Structural CoCrCu0.5FeNi High-Entropy Alloy with Silicon or Boron Addition

2019 ◽  
Vol 944 ◽  
pp. 169-175 ◽  
Author(s):  
Chen Chen ◽  
Ning Liu ◽  
Peng Jie Zhou ◽  
Hong Fu Xiang
Keyword(s):  
Intermetallic Compounds ◽  
Phase Stability ◽  
Volume Fraction ◽  
Alloy System ◽  
High Entropy Alloy ◽  
Intermetallic Formation ◽  
High Entropy ◽  
Strengthen Mechanism ◽  
Better Than ◽  
Feni Alloy

Microstructures, phase stability and properties of the as-solidified CoCrCu0.5FeNi(Si/B)x alloys were studied in this work. Intermetallic compounds are found when Si or B was added in a FCC structural CoCrCu0.5FeNi high-entropy alloy, and B possess a better intermetallic formation ability than Si. On the other, solute ability of Si is better than that of B in CoCrCu0.5FeNi alloy. The strength of CoCrCu0.5FeNi high-entropy alloy was improved after the addition of Si and B, and the strengthen mechanism was discussed. Moreover, parameter g can provide a reference to predict the ability of forming intermetallic compounds in CoCrCu0.5FeNi(Si/B)x alloys. The increase of δ is prone to the forming of intermetallic compounds. But the volume fraction of intermetallic compounds increase with the decrease of Ω in the same alloy system.

Composition Dependence of Phase Stability, Deformation Mechanisms, and Mechanical Properties of the CoCrFeMnNi High-Entropy Alloy System

JOM ◽  
2014 ◽  
Vol 66 (10) ◽  
pp. 1993-2001 ◽  
Author(s):  
C. C. Tasan ◽  
Y. Deng ◽  
K. G. Pradeep ◽  
M. J. Yao ◽  
H. Springer ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Phase Stability ◽  
Composition Dependence ◽  
Alloy System ◽  
Deformation Mechanisms ◽  
High Entropy Alloy ◽  
High Entropy

Phase Stability and Microstructural Evolution in a Ductile Refractory High Entropy Alloy Al 10Nb 15Ta 5Ti 30Zr 40

2019 ◽  
Author(s):  
V. Soni ◽  
Oleg N. Senkov, PhD ◽  
Jean-Philippe Couzinie, PhD ◽  
Yufeng Zheng, PhD ◽  
Bharat Gwalani, PhD ◽  
...  
Keyword(s):  
Microstructural Evolution ◽  
Phase Stability ◽  
High Entropy Alloy ◽  
High Entropy

Effects of Al addition on structural evolution and tensile properties of the FeCoNiCrMn high-entropy alloy system

2014 ◽  
Vol 62 ◽  
pp. 105-113 ◽  
Author(s):  
J.Y. He ◽  
W.H. Liu ◽  
H. Wang ◽  
Y. Wu ◽  
X.J. Liu ◽  
...  
Keyword(s):  
Tensile Properties ◽  
Structural Evolution ◽  
Alloy System ◽  
High Entropy Alloy ◽  
High Entropy ◽  
Al Addition

scholarly journals Phase stability of single phase Al0.12CrNiFeCo high entropy alloy upon irradiation

2018 ◽  
Vol 160 ◽  
pp. 1208-1216 ◽  
Author(s):  
B. Kombaiah ◽  
K. Jin ◽  
H. Bei ◽  
P.D. Edmondson ◽  
Y. Zhang
Keyword(s):  
Phase Stability ◽  
Single Phase ◽  
High Entropy Alloy ◽  
High Entropy

scholarly journals Influence of Aluminum and Molybdenum on the Microstructure and Corrosion Behavior of Thermally Sprayed High-Entropy Alloy Coatings

2021 ◽  
Author(s):  
Martin Löbel ◽  
Thomas Lindner ◽  
Maximilian Grimm ◽  
Lisa-Marie Rymer ◽  
Thomas Lampke
Keyword(s):  
Corrosion Resistance ◽  
Protective Coatings ◽  
Base Alloy ◽  
Alloy System ◽  
High Entropy Alloy ◽  
Oxide Content ◽  
Face Centered Cubic ◽  
High Entropy ◽  
Structural And Functional Properties ◽  
Wide Range

AbstractHigh-entropy alloys (HEAs) have shown a wide range of promising structural and functional properties. By the application of coating technology, an economical exploitation can be achieved. The high wear and corrosion resistance of HEAs make them particularly interesting for the application as protective coatings. Especially for alloys with a high chromium content, a high corrosion resistance has been revealed. For the current investigations, the equimolar HEA CrFeCoNi with a single-phase face centered cubic structure is considered as a base alloy system. To increase the corrosion resistance as well as the hardness and strength, the influence of the alloying elements aluminum and molybdenum is analyzed. For the current investigations, the high kinetic process high-velocity oxygen fuel thermal spraying (HVOF) has been considered to produce coatings with a low porosity and oxide content. Feedstock is produced by inert gas atomization. The influence of the alloy composition on the microstructure, phase formation and resulting property profile is studied in detail. A detailed analysis of the corrosion resistance and underlying mechanisms is conducted. The pitting and passivation behavior are investigated by potentiodynamic polarization measurements in NaCl and H2SO4 electrolyte. A distinct improvement of the corrosion resistance can be achieved for the alloy Al0.3CrFeCoNiMo0.2.

Wetting and interface phenomena in the molten Sn/CuFeNiCoCr high-entropy alloy system

2015 ◽  
Vol 356 ◽  
pp. 460-466 ◽  
Author(s):  
G.F. Ma ◽  
Z.K. Li ◽  
H. Ye ◽  
C.L. He ◽  
H.F. Zhang ◽  
...  
Keyword(s):  
Alloy System ◽  
High Entropy Alloy ◽  
High Entropy ◽  
Interface Phenomena
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