Results 101 to 110 of about 4,164 (246)

Formation of fully equiaxed grain microstructure in additively manufactured AlCoCrFeNiTi0.5 high entropy alloy

Materials & Design, 2019
In this work, the non-equiatomic high entropy alloy AlCoCrFeNiTi0.5 was additively manufactured via the laser engineered net shaping (LENS™) process. Contrary to the columnar grain microstructure commonly observed in previously reported alloys, the as ...
S. Guan, K. Solberg, D. Wan, F. Berto, T. Welo, T.M. Yue, K.C. Chan   +6 more
doaj   +1 more source

Phase‐Resolved Defect Transport Mechanisms Governing Asynchronous Ordering in a Eutectic High‐Entropy Alloy

Advanced Science, EarlyView.
Phase‐resolved experiments and atomistic simulations reveal asynchronous ordering behaviors in a eutectic high‐entropy alloy during isothermal annealing. Distinct defect transport mechanisms are identified in coexisting B2 and BCC phases, showing that vacancy and interstitial mediated diffusion governs phase‐dependent thermal stability.
Huiwen Yao, Qingshuang Ma, Jie Xiong, Jing Bai, Huijun Li, Qiuzhi Gao   +5 more
wiley   +1 more source

Sub‐Terahertz Memristor Switches Using MoS2 by Liquid–Liquid Interface Assembly

Advanced Science, EarlyView.
This work introduces application‐ready sub‐terahertz memristor switches fabricated from electrochemically exfoliated MoS2 nanosheets assembled at a liquid–liquid interface. The devices exhibit robust unipolar resistive switching, low insertion loss, and high isolation across 10–110 GHz.
Tomás Mingates, Mohamed E. Ghatas, Jonas Deuermeier, Adam G. Kelly, Joseph Neilson, Jonathan N. Coleman, Luís Mendes, João C. Vaz, Sérgio Matos, Luca Lucci, Antonio Clemente, Zdeněk Sofer, Luís M. Pessoa, Elvira Fortunato, Rodrigo Martins, Asal Kiazadeh   +15 more
wiley   +1 more source

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   +1 more source

Entropy Decoding the Fundamental Law of Phase Competition in Glass Formation

Advanced Science, EarlyView.
We validate the integration of intermetallic and eutectic phases as initial phases for composition design. The phase competition mechanism in glass formation is quantitatively clarified based on the melting entropy of competing phases. Glass‐forming ability is modulated by tuning phase competition via the melting entropy of initial phases.
Benke Huo, Zhengqing Cai, Bingtao Wang, Zhenqiang Song, Shi‐Dong Feng, Zijing Li, Xingjun Liu, Li‐Min Wang   +7 more
wiley   +1 more source

Achieving ultrahigh aluminum melt corrosion resistance via laser-induced nanoeutectic architectures in WMoTaNb high-entropy alloy coatings

Materials & Design
Aluminum melt corrosion severely damages iron-based components in manufacturing, necessitating advanced corrosion-resistant materials. This study investigates laser-clad WMoTaNb high-entropy alloy (HEA) coatings on H13 steel to address this challenge. By
Funian Han, Ruili Liu, Kui Wang, Gaopeng Xu, Yunqian Zhen, Xufeng Cai, Yazhao Shen, Haiyan Jiang   +7 more
doaj   +1 more source

Corrosion Behavior of As-Cladding Al0.8CrFeCoNiCu0.5Six High Entropy Alloys in 3.5% NaCl Solution [PDF]

Materials Research
The corrosion behavior of Al0.8CrFeCoNiCu0.5Six (x=0, 0.2, 0.3) high-entropy alloy laser cladding coatings in a 3.5% NaCl solution was investigated using polarization tests, impedance spectroscopy, scanning electron microscopy, and energy dispersive ...
Yanzhou Li, Yan Shi, Hua Lin, Xiaohu Ji
doaj   +1 more source

Machine Learning‐Assisted KCl‐CaCl2‐LiCl Electrolyte Design for Low‐Temperature, High‐Performance Calcium‐Based Liquid Metal Batteries

Advanced Science, EarlyView.
A machine learning‐assisted framework optimizes the KCl‐CaCl2‐LiCl ternary electrolyte. The optimized 13:35:52 mol% composition enables Ca‐based liquid metal batteries to operate stably at 480 °C, with >99.5% coulombic efficiency, ultralow self‐discharge, and excellent cycling stability, advancing low‐temperature large‐scale energy storage.
Xinglin Zhou, Lei Huang, Yan Zhou, Xiaohui Ning   +3 more
wiley   +1 more source

Microstructure, tensile property and forming performance of FeCoNi2Al medium entropy intermetallic fabricated by investment casting

Cailiao gongcheng
To further promote the industrial application of medium/high entropy intermetallics, a bulk of FeCoNi2Al medium entropy intermetallic ingot with 16 kg as the research object was prepared in this study.
GAO Wei, ZONG Xiao, KONG Fantao, ZHANG Fengxiang, DING Xianfei, NAN Hai   +5 more
doaj   +1 more source

Multicomponent and High Entropy Alloys

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   +1 more source