Results 31 to 40 of about 8,060 (255)

Corrosion Behavior of ZrCrMoNb High-entropy Alloy Coating in Ethylene Glycol Solution

International Journal of Electrochemical Science, 2021
A novel ZrCrMoNb high-entropy alloy coating was prepared on 3A21 aluminum alloy and its corrosion behavior in ethylene glycol solution was studied. By polarization curve, electrochemical impedance spectroscopy (EIS) and scanning electron microscope (SEM),
Hanyang Zuo, Long Wang, Min Gong, Xingwen Zheng, Chunhai Liu, Jinlong Fan, Feng Liu   +6 more
doaj   +1 more source

Brute Force Composition Scanning with a CALPHAD Database to Find Low Temperature Body Centered Cubic High Entropy Alloys

Entropy, 2018
We used the Thermo-Calc High Entropy Alloy CALPHAD database to determine the stable phases of AlCrMnNbTiV, AlCrMoNbTiV, AlCrFeTiV and AlCrMnMoTi alloys from 800 to 2800 K. The concentrations of elements were varied from 1⁻49 atom%.
T. P. C. Klaver, D. Simonovic, M. H. F. Sluiter   +2 more
doaj   +1 more source

Fabrication and Characterization of CoCrFeNiMn High Entropy Alloy Powder Processed by Gas Atomization [PDF]

Archives of Metallurgy and Materials, 2018
In this study, precisely controlled large scale gas atomization process was applied to produce spherical and uniform shaped high entropy alloy powder. The gas atomization process was carried out to fabricate CoCrFeNiMn alloy, which was studied for high ...
Tae Gyu Park, Sang Hyun Lee, Bin Lee, Hye Mi Cho, Won Jung Choi, Bum Sung Kim, Kwang Seon Shin, Taek-Soo Kim   +7 more
doaj   +1 more source

Microstructure and Properties of Laser Surface Remelting AlCoCrFeNi_2.1 High-Entropy Alloy

Metals, 2022
In this study, laser surface remelting of an AlCoCrFeNi2.1 high-entropy alloy was performed using a Yb:YAG laser. The effects of laser surface remelting on the phase structure, microstructure, Vickers hardness, frictional wear properties, and corrosion ...
Jingrun Chen, Jing Zhang, Ke Li, Dongdong Zhuang, Qianhao Zang, Hongmei Chen, Yandi Lu, Bo Xu, Yan Zhang   +8 more
doaj   +1 more source

High-Entropy Alloys

Nature Reviews Materials, 2019
High-Entropy Alloys, Second Edition provides a complete review of the current state of the field of high entropy alloys (HEA). Building upon the first edition, this fully updated release includes new theoretical understandings of these materials, highlighting recent developments on modeling and new classes of HEAs, such as Eutectic HEAs and Dual phase ...
B S, Murty, Bhattacharjee, Pinaki Prasad
openaire   +5 more sources

Effect of Zr on precipitation kinetics of Fe-Cr-Al alloys

Heat Treatment and Surface Engineering
The present work investigated the effect of Zr on the precipitation behavior and mechanical properties of Fe-13.5Cr-4.73Al-2.07Mo-(0.34∼0.45)Nb-(0.65∼0.87)Ta-(0.11∼0.33)Zr (wt. %) alloys.
Ben Niu, Zhenhua Wang, Qing Wang, Sen Ge, Chuang Dong, Ruiqian Zhang   +5 more
doaj   +1 more source

Microstructure and properties of AlCrFeNiMoNb high-entropy alloys coating on ZM5 magnesium alloy prepared by high-velocity air fuel (HVAF) spray

Journal of Materials Research and Technology, 2023
AlCrFeNiMoNb high-entropy alloys were successfully coated onto a ZM5 alloy using high-velocity air fuel spray (HVAF). Microcomputed tomography(micro-CT) results revealed that the porosity of the coating was only 0.36%, which demonstrates the coating has ...
Huifang Yin, Wenqing Ge, Ruqing Li, Li Zhou, Fengshi Yin, Huajian Sun, Jinzhao Sun, Jiqing Zhao   +7 more
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +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

Electron Redistribution Drives Structural Ordering in Sulfate (SO4) Adlayers

ChemElectroChem
In this work, the coadsorption of SO4 and H2O at the Au(111)‐electrolyte interface is investigated. It is uncovered how electron redistribution between coadsorbates correlates with the formation of tightly packed (√3a) SO4‐adsorbate chains, which have ...
Marcus F. Nygaard, Martin L. Lundquist, Amanda S. Petersen, Olaf M. Magnussen, Jan Rossmeisl   +4 more
doaj   +1 more source