Results 261 to 270 of about 32,641 (319)

Enhanced high-temperature strength of HfNbTaTiZrV refractory high-entropy alloy via Al2O3 reinforcement

Journal of Materials Science & Technology, 2022
: Novel composites of HfNbTaTiZrV refractory high-entropy alloy (RHEA) reinforced with 0-5 vol.% Al₂O₃ particles have been synthesized by vacuum arc melting.
Bingjie Wang, Qianqian Wang, N. Lu, Xiubing Liang, Baolong Shen   +4 more
semanticscholar   +1 more source

Developing a single-phase and nanograined refractory high-entropy alloy ZrHfNbTaW with ultrahigh hardness by phase transformation via high-pressure torsion

Journal of Alloys and Compounds
High-entropy alloys (HEAs) are potential candidates for applications as refractory materials. While dual-phase refractory HEAs containing an ordered phase exhibit high hardness, there is high interest in developing intermetallic-free and single-phase ...
Shivam Dangwal, K. Edalati
semanticscholar   +1 more source

Accelerated oxidation in ductile refractory high-entropy alloys

Intermetallics, 2018
Refractory high-entropy alloys (RHEAs) are promising candidates for new-generation high temperature materials, but they generally suffer from room temperature brittleness and unsatisfactory high-temperature oxidation resistance. There currently lack efforts to address to these two critical issues for RHEAs at the same time.
Saad Sheikh, Muhammad Kurnia Bijaksana, Amir Motallebzadeh, Samrand Shafeie, Adrianna Lozinko, Lu Gan, Te-Kang Tsao, Uta Klement, Demircan Canadinc, Hideyuki Murakami, Sheng Guo   +10 more
openaire   +1 more source

Refractory High Entropy Alloys (RHEAs)

The aerospace sector is constantly looking for innovative materials that can survive harsh conditions like high temperatures. Due to their outstanding mechanical properties under such conditions, the introduction of Refractory High- Entropy Alloys (RHEAs) is gaining prominence in this pursuit.
openaire   +1 more source

Structure and Properties of Refractory High-Entropy Alloys

2014
Many exciting properties such as high hardness, high strength, wear resistance and oxidation resistance are generally observed due to the distorted lattice and slow diffusion rate in high-entropy alloys (HEAs). In this study, HEAs based on refractory metals like Hf, Mo, Nb, Ta, Ti, W and Zr are studied with the goal to develop both ambient and high ...
Soumyadipta Maiti, Walter Steurer
openaire   +1 more source

Phase Transformations in Refractory High Entropy Alloys

High entropy alloys (HEAs) based on refractory elements have shown a great potential for high temperature structural applications. In particular, the ones containing Al, exhibits a microstructure similar to the γ-γ' in Ni-based superalloys. While these alloys exhibit impressive strengths at room temperature (RT) and at elevated temperatures, the ...
openaire   +2 more sources

Noble-Metal Based Random Alloy and Intermetallic Nanocrystals: Syntheses and Applications

Chemical Reviews, 2021
Ming Zhou, Can Li, Jiye Fang
exaly  

Oxygen-assisted spinodal structure achieves 1.5 GPa yield strength in a ductile refractory high-entropy alloy

Journal of Materials Science & Technology, 2023
D. Cui, Yuyu Zhang, Linxiang Liu, Yue Li, Lei Wang, Zhijun Wang, Junjie Li, Jincheng Wang, F. He   +8 more
semanticscholar   +1 more source

Electrochemical synthesis of ammonia from nitric oxide using a copper–tin alloy catalyst

Nature Energy, 2023
, Huijuan Jing
exaly  

Exploring deformation mechanisms in a refractory high entropy alloy (MoNbTaW)

International Journal of Mechanical Sciences
T. L. Dora, Sandeep Kumar Singh, R. Mishra, He Yu, Nitin Kishore Rawat, Akarsh Verma   +5 more
semanticscholar   +1 more source