Results 11 to 20 of about 3,526 (237)

Design and characterization of eutectic refractory high entropy alloys [PDF]

Materialia, 2021
Abstract Eutectic alloys are natural in-situ composites with near-equilibrium structures, impressive strength-ductility trade-off, and perfect castability. In the current study, novel eutectic Al-Cr-Nb-Ti-Zr refractory high entropy alloys (RHEAs) were designed using a CALPHAD (CALculation of PHAse Diagrams) approach.
N. Yurchenko, E. Panina, S. Zherebtsov, N. Stepanov   +3 more
openaire   +2 more sources

Systematic Development of Eutectic High Entropy Alloys by Thermodynamic Modeling and Experimentation: An Example of the CoCrFeNi-Mo System

Metals, 2021
Face centered cubic (FCC) high-entropy alloys (HEA) exhibit excellent ductility while body centered cubic (BCC) HEAs are characterized by high strength. Development of fine two-phase eutectic microstructure (consisting of a tough phase such as fcc and a ...
Muhammad Mukarram, M. Awais Munir, Mohammad Mujahid, Khurram Yaqoob   +3 more
doaj   +2 more sources

Accelerated design of eutectic high-entropy alloys using high-throughput phase diagram calculations and machine learning

Materials & Design
Designing eutectic high-entropy alloys (HEAs) with a stable dual-phase structure is prospective for high-temperature structural materials, but remains a challenge due to the complexity of multicomponent compositional space.
Mingxu Wu, Bang Guan, Junfeng Wang, Shubin Wang, Chao Yang, Chuan Zhang, Da Shu, Chengbo Xiao, Baode Sun   +8 more
doaj   +2 more sources

Multicomponent and High Entropy Alloys [PDF]

Entropy, 2014
This paper describes some underlying principles of multicomponent and high entropy alloys, and gives some examples of these materials. Different types of multicomponent alloy and different methods of accessing multicomponent phase space are discussed ...
Brian Cantor
doaj   +2 more sources

Effect of Si Doping on Microstructure and Mechanical and Electrochemical Properties of (AlCrFeNi)_100-xSi_x (x = 2, 4, 6) Dual-Phase Eutectic High-Entropy Alloys

Metals
The effects of silicon (Si) doping on the microstructure, mechanical properties, and electrochemical corrosion behavior of dual-phase eutectic high-entropy alloys (AlCrFeNi)100-xSix (x = 2, 4, 6 at.%) were systematically investigated.
Subo Yu, Kaiwen Kang, Borui Zhang, Aoxiang Li, Gong Li   +4 more
doaj   +2 more sources

Designing eutectic medium-entropy alloys CoFeNiTax with outstanding mechanical properties

Journal of Materials Research and Technology
The eutectic medium-entropy alloys CoFeNiTax (x = 0.4, 0.5, 0.6) were designed successfully based on binary eutectic systems and thermodynamics calculations in this study.
Yunlong Xue, Na Feng, Chenglin Kang, Kangkang Tian, Yifan Shao, Hulin Liu, Yuanting Wu, Liang Yuan   +7 more
doaj   +2 more sources

Formation mechanism of cellular structure of Ni32.5Co15Cr10Fe23Al17.5Mo1.5W0.5 eutectic high-entropy alloys by selective laser melting

Materials Research Letters
The extremely fast cooling rate of selective laser melting can significantly refine the lamellar structure of eutectic high-entropy alloys. However, extreme solidification conditions also promote the appearance of honeycomb-like cellular structures. Here,
An Xie, Huan Yu, Xiaoyu Bai, Zhijun Wang, Junjie Li, Jincheng Wang, Feng He   +6 more
doaj   +2 more sources

Effect of Alloying on Microstructure and Mechanical Properties of AlCoCrFeNi2.1 Eutectic High-Entropy Alloy

Materials
In order to explore the effect of alloying on the microstructures and mechanical properties of AlCoCrFeNi2.1 eutectic high-entropy alloys (EHEAs), 0.1, 0.2, and 0.3 at.% V, Mo, and B were added to the AlCoCrFeNi2.1 alloy in this work. The effects of the elements and contents on the phase composition, microstructures, mechanical properties, and fracture
Xue-Yao Tian, Hong-Liang Zhang, Zhi-Sheng Nong, Xue Cui, Ze-Hao Gu, Teng Liu, Hong-Mei Li, Eshkuvat Arzikulov   +7 more
openaire   +3 more sources

The Design and Microstructure Evolution Mechanism of New Cr_1.3Ni₂TiAl, CoCr_1.5NiTi_1.5Al_0.2, and V_0.3CoCr_1.2NiTi_1.1Al_0.2 Eutectic High-Entropy Alloys

Metals
To expand the fundamental understanding of eutectic high-entropy alloys (EHEAs), three novel alloy systems—Cr1.3Ni2TiAl, CoCr1.5NiTi1.5Al0.2, and V0.3CoCr1.2NiTi1.1Al0.2—were rationally designed through synergistic phase diagram analysis and ...
Xin Zhang, Haitao Yan, Yao Xiao, Wenxin Feng, Yangchuan Cai   +4 more
doaj   +2 more sources

Deformable Eutectic Alloy With Near‐Theoretical Yield Strength via Hierarchical Nanoscale Multiphases and Sessile Defects [PDF]

Advanced Science
Eutectic high‐entropy alloys (EHEAs), a typical bioinspired lamellar composite, have the potential to achieve high strength and good ductility simultaneously for structural applications through microstructure modification.
Yusha Luo, Qianqian Wang, Bo Sun, Ruixin Sheng, Zhijun Guo, Gaopeng Zou, Zhe Jia, Yang Tong, Gang Sha, Peter K. Liaw, Baolong Shen   +10 more
doaj   +2 more sources