Enhanced CO2 Hydrogenation Performance of CoCrNiFeMn High Entropy Alloys DOI Creative Commons

Chunjing Su,

Lizhuo Wang, Sibei Zou

et al.

Materials Today Sustainability, Journal Year: 2024, Volume and Issue: unknown, P. 101006 - 101006

Published: Oct. 1, 2024

Language: Английский

Accelerating the Exploration of High‐Entropy Alloys: Synergistic Effects of Integrating Computational Simulation and Experiments DOI Creative Commons
Deyu Jiang, Yuhua Li,

Liqiang Wang

et al.

Small Structures, Journal Year: 2024, Volume and Issue: 5(10)

Published: June 30, 2024

High‐entropy alloys (HEAs) are novel materials composed of multiple elements with nearly equal concentrations and they exhibit exceptional properties such as high strength, ductility, thermal stability, corrosion resistance. However, the intricate diverse structures HEAs pose significant challenges to understanding predicting their behavior at different length scales. This review summarizes recent advances in computational simulations experiments structure‐property relationships nano/micro Various methods first‐principles calculations, molecular dynamics simulations, phase diagram finite element discussed for revealing atomic/chemical crystal structures, defect formation migration, diffusion transition, stress‐strain distribution, deformation behavior, thermodynamic HEAs. Emphasis is placed on synergistic effects terms validation complementarity provide insights into underlying mechanisms evolutionary rules Additionally, current future directions experimental studies identified, including accuracy, efficiency, scalability methods, integration multiscale multiphysics models, exploration practical applications

Language: Английский

Citations

8
An all-around way to analyze the corrosion behavior and the potential applications of high-entropy alloys coating DOI Creative Commons
Yunlei Wang, Jie Zhang,

WU Tai-bin

et al.

Ceramics International, Journal Year: 2023, Volume and Issue: 50(4), P. 5893 - 5913

Published: Dec. 6, 2023

High-entropy alloys (HEAs) are an advanced material that has attracted people's attention in recent years due to their uniform structure and excellent mechanical properties. Therefore, thanks performance, the coatings widely used various industrial sectors. Moreover, HEAs can suffer from certain corrosion during actual use, which negatively impact properties working life. The research status progress of behavior reviewed this paper. First, we made introduction basic concepts, characteristics, preparation processes HEAs. Then, a detailed analysis discussion for behavior, mechanism influencing factors These mainly include fabrication processing, addition alloying elements, element recombination, alloy structure. Finally, future direction development corrosion, as well potential applications concluded prospected. Consequently, based on summary progress, it provide valuable technical guidance references junior researchers who just starting out, engineering personnel related fields. And also plays enlightening role promoting design new programs production processes.

Language: Английский

Citations

12
Formation and Evolution Mechanisms of Topological and Chemical Short-Range Order in Nicocr Multi-Principal Element Alloy During Solidification Process DOI
Kefan Li, Zhaoyang Hou,

penfei Zou

et al.

Published: Jan. 1, 2025

Language: Английский

Citations

0
Microstructure and Mechanical Properties of Dual‐Phase FeCoCrNiAl0.6 High Entropy Alloys Prepared by Laser Directed Energy Deposition DOI

Yongping Liang,

Yajie Dou,

Chaoyue Chen

et al.

Advanced Engineering Materials, Journal Year: 2025, Volume and Issue: unknown

Published: May 4, 2025

Recently, dual‐phase high‐entropy alloys with excellent strength–ductility combination have attracted widespread attention in the scientific community. Herein, three dense and crack‐free FeCoCrNiAl 0.6 high entropy (HEAs) were successfully prepared by laser directed energy deposition (LDED) via adjusting scanning speed. The printed formed fine columnar face‐centered cubic (FCC) dendrites woven mesh body‐centered (BCC) interdendrites. BCC phase is further composed of nanoscale A2 B2 phases spinodal decomposition. As speed increased from 5 mm s −1 to 9 , fraction FCC 56.9 70.5%, size refined. sample at an average grain 3.9 μm showed a comprehensive mechanical property, namely, yield stress ultimate tensile (712.0 1121.9 MPa) total elongation 16.5%. fracture surface changed cleavage‐type facet ductile dimples as increased. Based on microstructures base materials, it can be concluded that microstructure soft prevent initiation propagation microcracks and, thereafter, alleviate brittle failure.

Language: Английский

Citations

0
Dislocation nucleation and shear sliding at dual-phase high-entropy alloy semi-coherent interface with atomic complexity DOI
Jiacheng Zhang, Qian Lei, Wenqing Yang

et al.

Acta Materialia, Journal Year: 2025, Volume and Issue: unknown, P. 121118 - 121118

Published: May 1, 2025

Language: Английский

Citations

0
Formation and evolution mechanisms of topological and chemical short-range order in NiCoCr multi-principal element alloy during solidification process DOI Creative Commons
Kefan Li, Zhaoyang Hou, Pengfei Zou

et al.

Journal of Materials Research and Technology, Journal Year: 2025, Volume and Issue: unknown

Published: May 1, 2025

Language: Английский

Citations

0
Research on the effects of chemical short-range order on strengthening and toughening mechanisms of FCC/BCC dual-phase high-entropy alloys at micro/nano-scale DOI

Yihan Niu,

Dan Zhao, Bo Zhu

et al.

Materials Today Communications, Journal Year: 2024, Volume and Issue: unknown, P. 111064 - 111064

Published: Nov. 1, 2024

Language: Английский

Citations

2
Defects Act in an “Introverted” Manner in FeNiCrCoCu High-Entropy Alloy under Primary Damage DOI Creative Commons
Weiwei Zhang, Dongxiao Kan, Jing Liang

et al.

Metals, Journal Year: 2024, Volume and Issue: 14(3), P. 264 - 264

Published: Feb. 22, 2024

High-entropy alloys (HEAs) attract much attention as possible radiation-resistant materials due to their several unique properties. In this work, the generation and evolution of radiation damage response an FeNiCrCoCu HEA bulk Ni in early stages were explored using molecular dynamics (MD). The design, concerned with investigating irradiation tolerance HEA, encompassed following: (1) structure was obtained through a hybrid method that combined Monte Carlo (MC) MD vs. random distribution atoms. (2) Displacement cascades caused by different primary knock-on atom (PKA) energy levels (500 5000 eV) simulated. There almost no element segregation MD/MC analyzing Warren–Cowley short-range order (SRO) parameters. case, similar selected substrate conduct cascade process. A mass defects (interstitials vacancies) generated primarily PKA departure. number adatoms grew, which slightly roughened surface, distributed deeper increased for both pure HEA. At time thermal spike, one fascinating phenomenon occurred where Frenkel pairs more than Ni. However, we opposite result, fewer survived final state cascade. size defect clusters grew increasing materials. Defects suppressed HEA; is say, “cowards”, behaving introverted manner according anthropomorphic rhetorical method.

Language: Английский

Citations

0
Enhanced CO2 Hydrogenation Performance of CoCrNiFeMn High Entropy Alloys DOI Creative Commons

Chunjing Su,

Lizhuo Wang, Sibei Zou

et al.

Materials Today Sustainability, Journal Year: 2024, Volume and Issue: unknown, P. 101006 - 101006

Published: Oct. 1, 2024

Language: Английский

Citations

0