Results 31 to 40 of about 2,532 (257)

Cantor-derived medium-entropy alloys: bridging the gap between traditional metallic and high-entropy alloys

Journal of Materials Research and Technology, 2022
The year 2004 marked the beginning of a new era in the design of metallic materials, as the concept of multiple principal component alloys, commonly known as High-Entropy Alloys (HEAs), was proposed by Cantor and Yeh. The unexpected single-phase microstructure, instead of the expected brittle intermetallic compounds, was attributed to the large entropy
Fabio Da Costa Garcia Filho, Robert O. Ritchie, Marc André Meyers, Sergio Neves Monteiro   +3 more
openaire   +4 more sources

Coexistence of two types of short-range order in Si–Ge–Sn medium-entropy alloys

Communications Materials, 2022
Short-range chemical ordering has emerged as a key feature for controlling the properties of high-entropy alloys. Here, ab initio calculations reveal that two types of short-range ordering exist in Si–Ge–Sn medium-entropy alloys, suggesting that multiple
Xiaochen Jin, Shunda Chen, Tianshu Li
doaj   +1 more source

Advances in High-Entropy Alloys’ Microstructure, Properties and Preparation

Metals
High-entropy alloys (HEAs), medium-entropy alloys (MEAs), and related multi-principal-element materials have significantly broadened the conceptual framework of alloy design by moving beyond conventional alloy systems centered on one principal element [..
Chao Yang
doaj   +1 more source

Directed evolution of enzymes at the crossroads of tradition and innovation

FEBS Open Bio, EarlyView.
An iterative cycle of data‐driven enzyme optimization comprising four stages: genetic diversification of a template enzyme, expression of protein variants, high‐throughput evaluation, and machine‐learning‐guided redesign of the next variant library.
Maria Tomkova, Andrej Mirossay, Erik Sedlak   +2 more
wiley   +1 more source

One-Dimensional Magnetic FeCoNi Alloy Toward Low-Frequency Electromagnetic Wave Absorption

Nano-Micro Letters, 2022
Rational designing of one-dimensional (1D) magnetic alloy to facilitate electromagnetic (EM) wave attenuation capability in low-frequency (2–6 GHz) microwave absorption field is highly desired but remains a significant challenge.
Bintong Yang, Jiefeng Fang, Chunyang Xu, Hui Cao, Ruixuan Zhang, Biao Zhao, Mengqiu Huang, Xiangyu Wang, Hualiang Lv, Renchao Che   +9 more
doaj   +1 more source

Abnormal annealing-induced strengthening in Ni39.3Al15.7Fe45 eutectic medium entropy alloy

Journal of Materials Research and Technology, 2023
Cold-working combined with annealing is frequently used to enhance strength of traditional alloy materials. However, this thermal-mechanical processing is not adapted to the preparation for some near net shape parts.
Yu Wang, Chongfeng Sun, Zhong Yang, Jianping Li, Yaping Bai, Qiaoqin Guo, Dan Qian   +6 more
doaj   +1 more source

Effectiveness of rTMS on Working Memory and Inhibitory Impairments in Patients With Post‐Stroke Executive Deficits

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Considerable efforts have been dedicated to developing effective treatments for post‐stroke executive impairment (PSEI), among which repetitive transcranial magnetic stimulation (rTMS) has shown great potential. This study aimed to investigate the therapeutic effects of high‐frequency rTMS on working memory (WM) and response ...
Mengting Lao, Rongwei Du, Zhujun Wang, Yang Gao, Meiling Cheng, Xianglong Wang, Wen Wu   +6 more
wiley   +1 more source

Preparation of nanoporous CoCr alloy by dealloying CrCoNi medium entropy alloys

Journal of Materials Research and Technology, 2020
High/Medium entropy alloys (H/MEAs) represent a new strategy for the design of materials with properties superior to those of conventional alloys. Here, we show a new field of application where the uniform mixtures of multiple principal elements in H/MEAs is utilized to create new type nanoporous alloys by dealloying. By using equiatomic CrCoNi MEAs as
Longfei Zeng, Chaoping You, Xufeng Cai, Chunming Wang, Xuehui Zhang, Tongxiang Liang   +5 more
openaire   +2 more sources

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

Lattice structures and mechanical properties of FeCrNi medium-entropy alloy prepared by selective laser melting

Cailiao gongcheng
Metal lattice structural materials are widely used in aerospace, automotive industry, and other fields due to their advantages of lightweight, high specific strength, energy absorption, and porosity.
SUN Chi, WANG Jian, HE He, QIN Dongyang, CAO Yuankui, FU Ao, LIU Bin   +6 more
doaj   +1 more source